Fix problem with underscores in URLs.

Need to use \_ instead of _ for bibtex to parse these properly.

bibs/myrefs.bib

@@ -974,7 +974,7 @@ inproceedings{HHRRW14,
 	year       = {2016},
 	volume     = {3},
 	number     = {1},
-	url        = {https://siglog.hosting.acm.org/wp-content/uploads/2016/01/siglog_news_7.pdf},
+	url        = {https://siglog.hosting.acm.org/wp-content/uploads/2016/01/siglog\_news\_7.pdf},
   doi        = {10.1145/2893582.2893591},
 	jh         = yes,
   plclub     = yes,
@@ -989,7 +989,7 @@ inproceedings{HHRRW14,
                Haeberlen, Andreas and
                Hsu, Justin and
                Pierce, Benjamin C.},
-  url       = {http://fopara2013.cs.unibo.it/paper_8.pdf},
+  url       = {http://fopara2013.cs.unibo.it/paper\_8.pdf},
   booktitle = fopara,
   year      = {2013},
   jh        = yes,
@@ -3419,7 +3419,7 @@ year           = {2014}
                  Heraud, Sylvain  and
                  Zanella{-}B{\'e}guelin, Santiago},
   title       = {Computer-Aided Security Proofs for the Working Cryptographer},
-	Booktitle   = crypto11,
+	Booktitle   = crypto,
   year        = {2011},
 	Pages       = {71--90},
   publisher   = springer,
@@ -5875,7 +5875,7 @@ year={2016}}
                Amit Sahai and
                David Wagner},
   title     = {Private Circuits: {Securing} Hardware against Probing Attacks},
-  booktitle = crypto03,
+  booktitle = crypto,
   series    = lncs,
   volume    = {2729},
   pages     = {463--481},
@@ -6573,7 +6573,7 @@ publisher = now
   author    = {Hoang, Viet Tung and
                Rogaway, Phillip},
   title     = {On Generalized {Feistel} Networks},
-  booktitle = crypto10,
+  booktitle = crypto,
   series    = {Lecture Notes in Computer Science},
   volume    = {6223},
   pages     = {613--630},
@@ -6585,7 +6585,7 @@ publisher = now
 @inproceedings{Mironov02,
   author    = {Ilya Mironov},
   title     = {({Not} So) Random Shuffles of {RC4}},
-  booktitle = crypto02,
+  booktitle = crypto,
   series    = {Lecture Notes in Computer Science},
   volume    = {2442},
   pages     = {304--319},