found: Wikipedia, viewed Oct. 7, 2016(Udo Quellmalz is a German judoka, who's nicknamed Quelle. He won two Olympic medals in the half-lightweight division, in 1992 and 1996. Born: March 8, 1967 in Leipzig, Germany. He is a sports science graduate from Leipzig University in Germany. After he retired from competitive Judo in 1998, Udo moved to Great Britain where he took the role of British Judo Performance Director. Since 2006 he has worked as head coach for the Austrian Judo Team and moved back to live in Germany)