FAQin Congress is a free invitation-only underground hacking event in Madrid, Spain being held March 5th to the 6th, 2016. The call for papers has been announced.
You can download it from the following link: https://packetstormsecurity.com/files/download/135609/faqin-cfp.txt
Source: https://packetstormsecurity.com/files/135609/FAQin-Congress-Call-For-Papers.html