Call For Papers for Positive Hack Days III which will take place May 22nd through the 23rd, 2013 in Moscow, Russia.
You can download it from the following link: https://packetstormsecurity.com/files/download/117733/phdays3-cfp.txt
Source: https://packetstormsecurity.com/files/117733/Positive-Hack-Days-III-Call-For-Papers.html