--- a/TODO	Sat Oct 08 12:16:17 2016 +0100
+++ b/TODO	Mon Feb 06 02:03:17 2017 +0000
@@ -1,7 +1,21 @@
+
 Regular Path Queries & regular expressions
 
 
 ------
 about extended regular expressions
   http://www.ddfy.de/
-  http://perl.plover.com/NPC/
\ No newline at end of file
+  http://perl.plover.com/NPC/
+
+
+========
+https://books.google.co.uk/books?id=Z3qkDAAAQBAJ&pg=PT492&lpg=PT492&dq=%22improve+security%22+%22regular+expressions%22&source=bl&ots=RlTKL1pKe-&sig=CJ-DNODICsUx_8OfuRzlcDDTKH4&hl=en&sa=X&ved=0ahUKEwidlaXA58zRAhWBAsAKHfIXCj0Q6AEIODAF#v=onepage&q=%22improve%20security%22%20%22regular%20expressions%22&f=false
+
+
+
+==========
+Regexes and automata
+
+http://link.springer.com/article/10.1007/s11265-015-1052-y
+http://ieeexplore.ieee.org/abstract/document/7468531/
+http://www.arl.wustl.edu/~pcrowley/
\ No newline at end of file