За повече инфо вижте тук:

http://departments.unwe.bg/stat/bg/news/20313/%d0%b2%d0%b0%d0%b6%d0%bd%d0%be-%d0%b4%d1%8a%d1%80%d0%b6%d0%b0%d0%b2%d0%b5%d0%bd-%d0%b8%d0%b7%d0%bf%d0%b8%d1%82-%d0%b8-%d0%b7%d0%b0%d1%89%d0%b8%d1%82%d0%b0-%d0%bd%d0%b0-%d0%b4%d0%b8%d0%bf%d0%bb%d0%be%d0%bc%d0%bd%d0%b8-%d1%80%d0%b0%d0%b1%d0%be%d1%82%d0%b8.html