Norbert Ryska (born August 9, 1948, in Hau) is a German mathematician and museum director. Ryska worked from 1976 to 1992 as an employee of Nixdorf Computer AG in the R&D department. Until 1996 as managing director and project manager on behalf of the Nixdorf Foundations mainly responsible for the construction of the Heinz Nixdorf MuseumsForum (HNF). From 1996 to 2013, Ryska was the managing director for the museum and technology departments of the HNF.
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