David Speiser
David Speiser (born 27 August 1980 in Oberstdorf) is a German snowboarder. He competed in the men's snowboard cross event at the 2006 Winter Olympics, placing 32nd, and the 2010 Winter Olympics, placing eighth. Provided by Wikipedia
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Published: 1962
Superior document: Leonhardi Euleri opera omnia Series 3, Opera physica, miscellanea epistolae, Vol. 5