Today, an important man of chess composition passed away, Milan Velimirovic, who was born in Niš, Yugoslavia, in Apr 21, 1952.
May he rest in peace.
First of all, he was a very good person, as many of his collaborators say, from every continent of Earth.
He was also a very good solver (Grand Master in Solving, in 1984) and a very good composer (Grand Master in Composing, in 2010).
He created the site MatPlus.Net and the software MatPlus Librarian.
He wrote important books, with last the "Encyclopedia of Chess Problems - Themes and Terms", (Chess Informant, Belgrad, 2012), together with Kari Valtonen.
Some words about his life were written on his site (http://www.matplus.net/pub/start.php?px=1361829901&app=forum&act=posts&fid=gen&tid=1207) and in other chess pages, here (http://kobulchess.com/en/news/7-2011-07-31-17-09-09/197-milan-passed-away.html) and here (http://www.theproblemist.org/news/96-2013/189-rip-milan-velimiroviacacute-21041952-25022013).