diff --git a/doc/pub/week43/html/week43-bs.html b/doc/pub/week43/html/week43-bs.html
index 95e708891..f961b6351 100644
--- a/doc/pub/week43/html/week43-bs.html
+++ b/doc/pub/week43/html/week43-bs.html
@@ -557,7 +557,7 @@ we will also study the usage of Autograd, see for example <a href="https://www.y
 <ol>
 <li> <a href="https://www.jmlr.org/papers/volume18/17-468/17-468.pdf" target="_self"><tt>https://www.jmlr.org/papers/volume18/17-468/17-468.pdf</tt></a></li>
 <li> <a href="https://deepimaging.github.io/lectures/lecture_11_Backpropagation.pdf" target="_self"><tt>https://deepimaging.github.io/lectures/lecture_11_Backpropagation.pdf</tt></a></li>
-<li> Slides 12-44 at URL":http://cs231n.stanford.edu/slides/2017/cs231n_2017_lecture4.pdf"</li>
+<li> Slides 12-44 at <a href="http://cs231n.stanford.edu/slides/2017/cs231n_2017_lecture4.pdf" target="_self"><tt>http://cs231n.stanford.edu/slides/2017/cs231n_2017_lecture4.pdf</tt></a></li>
 </ol>
 <!-- !split -->
 <h2 id="lecture-monday-october-21" class="anchor">Lecture Monday  October 21 </h2>
diff --git a/doc/pub/week43/html/week43-reveal.html b/doc/pub/week43/html/week43-reveal.html
index e5ee3b4c6..c3d577bb1 100644
--- a/doc/pub/week43/html/week43-reveal.html
+++ b/doc/pub/week43/html/week43-reveal.html
@@ -275,7 +275,7 @@ we will also study the usage of Autograd, see for example <a href="https://www.y
 <ol>
 <p><li> <a href="https://www.jmlr.org/papers/volume18/17-468/17-468.pdf" target="_blank"><tt>https://www.jmlr.org/papers/volume18/17-468/17-468.pdf</tt></a></li>
 <p><li> <a href="https://deepimaging.github.io/lectures/lecture_11_Backpropagation.pdf" target="_blank"><tt>https://deepimaging.github.io/lectures/lecture_11_Backpropagation.pdf</tt></a></li>
-<p><li> Slides 12-44 at URL":http://cs231n.stanford.edu/slides/2017/cs231n_2017_lecture4.pdf"</li>
+<p><li> Slides 12-44 at <a href="http://cs231n.stanford.edu/slides/2017/cs231n_2017_lecture4.pdf" target="_blank"><tt>http://cs231n.stanford.edu/slides/2017/cs231n_2017_lecture4.pdf</tt></a></li>
 </ol>
 </section>
 
diff --git a/doc/pub/week43/html/week43-solarized.html b/doc/pub/week43/html/week43-solarized.html
index 535d6176e..658589538 100644
--- a/doc/pub/week43/html/week43-solarized.html
+++ b/doc/pub/week43/html/week43-solarized.html
@@ -449,7 +449,7 @@ we will also study the usage of Autograd, see for example <a href="https://www.y
 <ol>
 <li> <a href="https://www.jmlr.org/papers/volume18/17-468/17-468.pdf" target="_blank"><tt>https://www.jmlr.org/papers/volume18/17-468/17-468.pdf</tt></a></li>
 <li> <a href="https://deepimaging.github.io/lectures/lecture_11_Backpropagation.pdf" target="_blank"><tt>https://deepimaging.github.io/lectures/lecture_11_Backpropagation.pdf</tt></a></li>
-<li> Slides 12-44 at URL":http://cs231n.stanford.edu/slides/2017/cs231n_2017_lecture4.pdf"</li>
+<li> Slides 12-44 at <a href="http://cs231n.stanford.edu/slides/2017/cs231n_2017_lecture4.pdf" target="_blank"><tt>http://cs231n.stanford.edu/slides/2017/cs231n_2017_lecture4.pdf</tt></a></li>
 </ol>
 <!-- !split --><br><br><br><br><br><br><br><br><br><br>
 <h2 id="lecture-monday-october-21">Lecture Monday  October 21 </h2>
diff --git a/doc/pub/week43/html/week43.html b/doc/pub/week43/html/week43.html
index a41448b95..253c233f8 100644
--- a/doc/pub/week43/html/week43.html
+++ b/doc/pub/week43/html/week43.html
@@ -526,7 +526,7 @@ we will also study the usage of Autograd, see for example <a href="https://www.y
 <ol>
 <li> <a href="https://www.jmlr.org/papers/volume18/17-468/17-468.pdf" target="_blank"><tt>https://www.jmlr.org/papers/volume18/17-468/17-468.pdf</tt></a></li>
 <li> <a href="https://deepimaging.github.io/lectures/lecture_11_Backpropagation.pdf" target="_blank"><tt>https://deepimaging.github.io/lectures/lecture_11_Backpropagation.pdf</tt></a></li>
-<li> Slides 12-44 at URL":http://cs231n.stanford.edu/slides/2017/cs231n_2017_lecture4.pdf"</li>
+<li> Slides 12-44 at <a href="http://cs231n.stanford.edu/slides/2017/cs231n_2017_lecture4.pdf" target="_blank"><tt>http://cs231n.stanford.edu/slides/2017/cs231n_2017_lecture4.pdf</tt></a></li>
 </ol>
 <!-- !split --><br><br><br><br><br><br><br><br><br><br>
 <h2 id="lecture-monday-october-21">Lecture Monday  October 21 </h2>
diff --git a/doc/pub/week43/ipynb/ipynb-week43-src.tar.gz b/doc/pub/week43/ipynb/ipynb-week43-src.tar.gz
index 379101dcd..1ddce2e79 100644
Binary files a/doc/pub/week43/ipynb/ipynb-week43-src.tar.gz and b/doc/pub/week43/ipynb/ipynb-week43-src.tar.gz differ
diff --git a/doc/pub/week43/ipynb/week43.ipynb b/doc/pub/week43/ipynb/week43.ipynb
index 97de5a35c..6e041d424 100644
--- a/doc/pub/week43/ipynb/week43.ipynb
+++ b/doc/pub/week43/ipynb/week43.ipynb
@@ -2,7 +2,7 @@
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@@ -14,7 +14,7 @@
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@@ -27,7 +27,7 @@
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@@ -45,7 +45,7 @@
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@@ -62,7 +62,7 @@
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@@ -78,7 +78,7 @@
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@@ -89,7 +89,7 @@
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@@ -103,7 +103,7 @@
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@@ -116,7 +116,7 @@
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@@ -128,12 +128,12 @@
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     "\n",
-    "3. Slides 12-44 at URL\":http://cs231n.stanford.edu/slides/2017/cs231n_2017_lecture4.pdf\""
+    "3. Slides 12-44 at <http://cs231n.stanford.edu/slides/2017/cs231n_2017_lecture4.pdf>"
    ]
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@@ -143,7 +143,7 @@
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@@ -170,7 +170,7 @@
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@@ -193,7 +193,7 @@
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@@ -205,7 +205,7 @@
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@@ -217,7 +217,7 @@
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@@ -227,7 +227,7 @@
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@@ -239,7 +239,7 @@
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@@ -253,7 +253,7 @@
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@@ -265,7 +265,7 @@
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@@ -277,7 +277,7 @@
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@@ -287,7 +287,7 @@
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@@ -299,7 +299,7 @@
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@@ -311,7 +311,7 @@
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@@ -321,7 +321,7 @@
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@@ -333,7 +333,7 @@
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@@ -345,7 +345,7 @@
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@@ -368,7 +368,7 @@
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@@ -380,7 +380,7 @@
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@@ -392,7 +392,7 @@
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@@ -402,7 +402,7 @@
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@@ -414,7 +414,7 @@
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@@ -435,7 +435,7 @@
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@@ -449,7 +449,7 @@
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@@ -461,7 +461,7 @@
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@@ -483,7 +483,7 @@
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@@ -505,7 +505,7 @@
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@@ -533,7 +533,7 @@
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@@ -545,7 +545,7 @@
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@@ -578,7 +578,7 @@
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@@ -590,7 +590,7 @@
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@@ -641,7 +641,7 @@
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@@ -653,7 +653,7 @@
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@@ -665,7 +665,7 @@
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@@ -675,7 +675,7 @@
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@@ -947,7 +947,7 @@
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@@ -1135,7 +1135,7 @@
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@@ -1179,7 +1179,7 @@
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@@ -1219,7 +1219,7 @@
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@@ -1240,7 +1240,7 @@
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@@ -1266,7 +1266,7 @@
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@@ -1294,7 +1294,7 @@
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@@ -1331,7 +1331,7 @@
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@@ -1377,7 +1377,7 @@
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@@ -1408,7 +1408,7 @@
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@@ -1446,7 +1446,7 @@
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@@ -1480,7 +1480,7 @@
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@@ -1521,7 +1521,7 @@
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@@ -1600,7 +1600,7 @@
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@@ -1621,7 +1621,7 @@
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@@ -1635,7 +1635,7 @@
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@@ -1745,7 +1745,7 @@
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@@ -1764,7 +1764,7 @@
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@@ -1791,7 +1791,7 @@
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@@ -1805,7 +1805,7 @@
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@@ -1836,7 +1836,7 @@
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@@ -1847,7 +1847,7 @@
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@@ -1891,7 +1891,7 @@
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@@ -1914,7 +1914,7 @@
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@@ -1941,7 +1941,7 @@
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@@ -1952,7 +1952,7 @@
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@@ -1997,7 +1997,7 @@
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@@ -2015,7 +2015,7 @@
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@@ -2050,7 +2050,7 @@
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@@ -2062,7 +2062,7 @@
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@@ -2074,7 +2074,7 @@
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@@ -2087,7 +2087,7 @@
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@@ -2098,7 +2098,7 @@
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@@ -2111,7 +2111,7 @@
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@@ -2126,7 +2126,7 @@
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@@ -2138,7 +2138,7 @@
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@@ -2150,7 +2150,7 @@
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@@ -2163,7 +2163,7 @@
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@@ -2218,7 +2218,7 @@
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@@ -2247,7 +2247,7 @@
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@@ -2277,7 +2277,7 @@
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@@ -2304,7 +2304,7 @@
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@@ -2346,7 +2346,7 @@
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@@ -2357,7 +2357,7 @@
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@@ -2534,7 +2534,7 @@
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@@ -2553,7 +2553,7 @@
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@@ -2575,7 +2575,7 @@
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@@ -2716,7 +2716,7 @@
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@@ -2732,7 +2732,7 @@
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@@ -2745,7 +2745,7 @@
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@@ -2757,7 +2757,7 @@
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@@ -2779,7 +2779,7 @@
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@@ -2795,7 +2795,7 @@
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@@ -2833,7 +2833,7 @@
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@@ -2846,7 +2846,7 @@
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-   "id": "dff75c1d",
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@@ -2867,7 +2867,7 @@
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@@ -2883,7 +2883,7 @@
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-   "id": "8dd65223",
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@@ -2941,7 +2941,7 @@
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@@ -2956,7 +2956,7 @@
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-   "id": "28d2cd95",
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@@ -2977,7 +2977,7 @@
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@@ -3001,7 +3001,7 @@
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@@ -3473,7 +3473,7 @@
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@@ -3485,7 +3485,7 @@
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@@ -3529,7 +3529,7 @@
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@@ -3545,7 +3545,7 @@
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@@ -3560,7 +3560,7 @@
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@@ -3571,7 +3571,7 @@
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-   "id": "1a6f6d0c",
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@@ -3586,7 +3586,7 @@
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@@ -3602,7 +3602,7 @@
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@@ -3616,7 +3616,7 @@
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@@ -3631,7 +3631,7 @@
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@@ -3657,7 +3657,7 @@
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@@ -3672,7 +3672,7 @@
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@@ -3683,7 +3683,7 @@
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@@ -3698,7 +3698,7 @@
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@@ -3709,7 +3709,7 @@
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@@ -3729,7 +3729,7 @@
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@@ -3744,7 +3744,7 @@
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@@ -3759,7 +3759,7 @@
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-   "id": "74f1f17d",
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@@ -3796,7 +3796,7 @@
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@@ -3809,7 +3809,7 @@
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@@ -3832,7 +3832,7 @@
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@@ -3842,7 +3842,7 @@
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@@ -3869,7 +3869,7 @@
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@@ -3883,7 +3883,7 @@
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@@ -3900,7 +3900,7 @@
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@@ -3916,7 +3916,7 @@
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@@ -3928,7 +3928,7 @@
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@@ -3946,7 +3946,7 @@
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@@ -3967,7 +3967,7 @@
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@@ -3984,7 +3984,7 @@
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@@ -3996,7 +3996,7 @@
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@@ -4007,7 +4007,7 @@
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@@ -4024,7 +4024,7 @@
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@@ -4035,7 +4035,7 @@
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@@ -4051,7 +4051,7 @@
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@@ -4063,7 +4063,7 @@
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@@ -4080,7 +4080,7 @@
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@@ -4092,7 +4092,7 @@
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@@ -4110,7 +4110,7 @@
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@@ -4120,7 +4120,7 @@
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@@ -4132,7 +4132,7 @@
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@@ -4149,7 +4149,7 @@
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@@ -4161,7 +4161,7 @@
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@@ -4172,7 +4172,7 @@
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@@ -4184,7 +4184,7 @@
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@@ -4194,7 +4194,7 @@
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@@ -4214,7 +4214,7 @@
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@@ -4231,7 +4231,7 @@
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@@ -4250,7 +4250,7 @@
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@@ -4262,7 +4262,7 @@
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@@ -4272,7 +4272,7 @@
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@@ -4289,7 +4289,7 @@
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@@ -4299,7 +4299,7 @@
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@@ -4315,7 +4315,7 @@
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@@ -4327,7 +4327,7 @@
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@@ -4339,7 +4339,7 @@
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@@ -4351,7 +4351,7 @@
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@@ -4361,7 +4361,7 @@
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@@ -4373,7 +4373,7 @@
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@@ -4390,7 +4390,7 @@
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@@ -4400,7 +4400,7 @@
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@@ -4412,7 +4412,7 @@
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@@ -4426,7 +4426,7 @@
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@@ -4442,7 +4442,7 @@
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@@ -4454,7 +4454,7 @@
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@@ -4476,7 +4476,7 @@
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@@ -4488,7 +4488,7 @@
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@@ -4511,7 +4511,7 @@
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@@ -4527,7 +4527,7 @@
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@@ -4539,7 +4539,7 @@
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@@ -4563,7 +4563,7 @@
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@@ -4575,7 +4575,7 @@
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@@ -4596,7 +4596,7 @@
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@@ -4608,7 +4608,7 @@
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@@ -4627,7 +4627,7 @@
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@@ -4637,7 +4637,7 @@
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@@ -4651,7 +4651,7 @@
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@@ -4663,7 +4663,7 @@
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@@ -4675,7 +4675,7 @@
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@@ -4692,7 +4692,7 @@
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@@ -4704,7 +4704,7 @@
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@@ -4726,7 +4726,7 @@
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@@ -4741,7 +4741,7 @@
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@@ -4752,7 +4752,7 @@
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@@ -4907,7 +4907,7 @@
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@@ -4922,7 +4922,7 @@
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@@ -5091,7 +5091,7 @@
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@@ -5104,7 +5104,7 @@
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@@ -5121,7 +5121,7 @@
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@@ -5137,7 +5137,7 @@
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@@ -5150,7 +5150,7 @@
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@@ -5167,7 +5167,7 @@
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@@ -5179,7 +5179,7 @@
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@@ -5206,7 +5206,7 @@
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@@ -5219,7 +5219,7 @@
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@@ -5393,7 +5393,7 @@
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@@ -5413,7 +5413,7 @@
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@@ -5428,7 +5428,7 @@
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@@ -5442,7 +5442,7 @@
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@@ -5458,7 +5458,7 @@
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@@ -5468,7 +5468,7 @@
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@@ -5490,7 +5490,7 @@
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@@ -5504,7 +5504,7 @@
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@@ -5580,7 +5580,7 @@
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@@ -5592,7 +5592,7 @@
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@@ -5609,7 +5609,7 @@
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@@ -5621,7 +5621,7 @@
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@@ -5636,7 +5636,7 @@
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@@ -5648,7 +5648,7 @@
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@@ -5660,7 +5660,7 @@
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@@ -5672,7 +5672,7 @@
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@@ -5682,7 +5682,7 @@
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@@ -5699,7 +5699,7 @@
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@@ -5711,7 +5711,7 @@
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@@ -5723,7 +5723,7 @@
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@@ -5733,7 +5733,7 @@
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@@ -5745,7 +5745,7 @@
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@@ -5756,7 +5756,7 @@
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@@ -5917,7 +5917,7 @@
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@@ -5939,7 +5939,7 @@
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@@ -5956,7 +5956,7 @@
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@@ -5966,7 +5966,7 @@
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@@ -5981,7 +5981,7 @@
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@@ -5991,7 +5991,7 @@
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@@ -6006,7 +6006,7 @@
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@@ -6017,7 +6017,7 @@
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@@ -6037,7 +6037,7 @@
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@@ -6049,7 +6049,7 @@
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@@ -6086,7 +6086,7 @@
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@@ -6096,7 +6096,7 @@
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@@ -6109,7 +6109,7 @@
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@@ -6310,7 +6310,7 @@
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@@ -6327,7 +6327,7 @@
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@@ -6344,7 +6344,7 @@
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@@ -6354,7 +6354,7 @@
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@@ -6369,7 +6369,7 @@
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@@ -6383,7 +6383,7 @@
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@@ -6396,7 +6396,7 @@
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@@ -6416,7 +6416,7 @@
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    "cell_type": "markdown",
-   "id": "51ed2ce5",
+   "id": "526d5428",
    "metadata": {
     "editable": true
    },
@@ -6428,7 +6428,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "1db36b3f",
+   "id": "279b9296",
    "metadata": {
     "editable": true
    },
@@ -6440,7 +6440,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "f8871b35",
+   "id": "bcb8ce40",
    "metadata": {
     "editable": true
    },
@@ -6452,7 +6452,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "61d1b6fd",
+   "id": "6549ea7b",
    "metadata": {
     "editable": true
    },
@@ -6462,7 +6462,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "bf0d8161",
+   "id": "0956062e",
    "metadata": {
     "editable": true
    },
@@ -6474,7 +6474,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "55be0d9c",
+   "id": "8fca0166",
    "metadata": {
     "editable": true
    },
@@ -6486,7 +6486,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "c84167ff",
+   "id": "58ad6f25",
    "metadata": {
     "editable": true
    },
@@ -6498,7 +6498,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "d2cd5f6d",
+   "id": "e6e5728e",
    "metadata": {
     "editable": true
    },
@@ -6508,7 +6508,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "ff28d51f",
+   "id": "6921faa1",
    "metadata": {
     "editable": true
    },
@@ -6524,7 +6524,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "da5421f4",
+   "id": "80e632ef",
    "metadata": {
     "editable": true
    },
@@ -6534,7 +6534,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "72526baf",
+   "id": "a2711421",
    "metadata": {
     "editable": true
    },
@@ -6546,7 +6546,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "b9ae6a09",
+   "id": "981da4af",
    "metadata": {
     "editable": true
    },
@@ -6563,7 +6563,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "729ce8ab",
+   "id": "c1b8c16d",
    "metadata": {
     "editable": true
    },
@@ -6573,7 +6573,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "c7792bbb",
+   "id": "b8ed6509",
    "metadata": {
     "editable": true
    },
@@ -6589,7 +6589,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "5de3defc",
+   "id": "200050ac",
    "metadata": {
     "editable": true
    },
@@ -6603,7 +6603,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "c0dfe6ce",
+   "id": "5dca99d2",
    "metadata": {
     "editable": true
    },
@@ -6622,7 +6622,7 @@
   {
    "cell_type": "code",
    "execution_count": 47,
-   "id": "24b4cb4e",
+   "id": "85f4b843",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -6677,7 +6677,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "b00796b3",
+   "id": "9dd68ff8",
    "metadata": {
     "editable": true
    },
@@ -6707,7 +6707,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "07d55ec4",
+   "id": "65f68c5a",
    "metadata": {
     "editable": true
    },
@@ -6736,7 +6736,7 @@
   {
    "cell_type": "code",
    "execution_count": 48,
-   "id": "56e1ff08",
+   "id": "91612f4f",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -6783,7 +6783,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "23cb46d1",
+   "id": "ff9df4ba",
    "metadata": {
     "editable": true
    },
@@ -6809,7 +6809,7 @@
   {
    "cell_type": "code",
    "execution_count": 49,
-   "id": "082821ea",
+   "id": "e6451b9e",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -7043,7 +7043,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "48b0ab9e",
+   "id": "7f867cf2",
    "metadata": {
     "editable": true
    },
@@ -7055,7 +7055,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "d80c32cf",
+   "id": "ded83be1",
    "metadata": {
     "editable": true
    },
@@ -7067,7 +7067,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "247e3bee",
+   "id": "f0aba0c9",
    "metadata": {
     "editable": true
    },
@@ -7079,7 +7079,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "68834b21",
+   "id": "28a48fe7",
    "metadata": {
     "editable": true
    },
@@ -7096,7 +7096,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "2b44826e",
+   "id": "61ded78d",
    "metadata": {
     "editable": true
    },
@@ -7106,7 +7106,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "7fae1b11",
+   "id": "990695ea",
    "metadata": {
     "editable": true
    },
@@ -7118,7 +7118,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "f730d187",
+   "id": "58841089",
    "metadata": {
     "editable": true
    },
@@ -7135,7 +7135,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "83554dad",
+   "id": "303eb900",
    "metadata": {
     "editable": true
    },
@@ -7146,7 +7146,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "af58b0a5",
+   "id": "ce5c5167",
    "metadata": {
     "editable": true
    },
@@ -7166,7 +7166,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "faee51d3",
+   "id": "609a7556",
    "metadata": {
     "editable": true
    },
@@ -7176,7 +7176,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "4923def0",
+   "id": "5edb8797",
    "metadata": {
     "editable": true
    },
@@ -7202,7 +7202,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "20dbc29e",
+   "id": "c6be7518",
    "metadata": {
     "editable": true
    },
@@ -7218,7 +7218,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "8e4820e8",
+   "id": "368bb540",
    "metadata": {
     "editable": true
    },
@@ -7229,7 +7229,7 @@
   {
    "cell_type": "code",
    "execution_count": 50,
-   "id": "7410b8b6",
+   "id": "65085f11",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -7460,7 +7460,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "8ae30185",
+   "id": "41011c90",
    "metadata": {
     "editable": true
    },
diff --git a/doc/src/week43/week43.do.txt b/doc/src/week43/week43.do.txt
index 35bff4523..9c5bfe858 100644
--- a/doc/src/week43/week43.do.txt
+++ b/doc/src/week43/week43.do.txt
@@ -61,7 +61,7 @@ we will also study the usage of Autograd, see for example URL:"https://www.youtu
 For more details on the back propagation algorithm and automatic differentiation see
 o URL:"https://www.jmlr.org/papers/volume18/17-468/17-468.pdf"
 o URL:"https://deepimaging.github.io/lectures/lecture_11_Backpropagation.pdf"
-o Slides 12-44 at URL":http://cs231n.stanford.edu/slides/2017/cs231n_2017_lecture4.pdf"
+o Slides 12-44 at URL:"http://cs231n.stanford.edu/slides/2017/cs231n_2017_lecture4.pdf"