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Wiki information Holpert:
Jožef Holpert is a former Yugoslav handball player who competed in the 1988 Summer Olympics. In 1988, he was part of the Yugoslav team, which won the bronze medal. He played all six matches and scored 15 goals.
Ervin Holpert is a Serbian sprint canoer. He won a bronze medal in the K-4 1000 m event at the 2012 Canoe Sprint European Championships in Zagreb.