Sources:

Peter F. Sugar, Péter Hanák and Tibor Frank. A History of Hungary. Bloomington: Indiana University Press, 1990.

http://motlc.wiesenthal.com/pages/t002/t00234.html

http://www.britannica.com/bcom/eb/article/2/0,5716,9742+1,00.html

http://lcweb2.loc.gov/cgi-bin/query/r?frd/cstdy:@field(DOCID+hu0000)

http://www.hu.net/Magyar/corvinus/timeless/chapter22.htm