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Heiner Zieschang, German mathematician and academic (born 1936)
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Heiner Zieschang
German mathematician
Heiner Zieschang was a German mathematician. He was a professor at Ruhr University in Bochum from 1968 till 2002. He was a topologist. In 1996 he was an honorary doctor of University of Toulouse and in 1997 he was an honorary professor of Moscow State University.Source: Wikipedia (CC BY-SA)