Hans Steffen
Hans Steffen Hoffman (20 July 1865, in Fürstenwerder, Prussia – 7 April 1936, in Davos, Switzerland) was a German geographer and explorer of the Aysén Region in western Patagonia. Steffen also worked as a teacher, encyclopedist and historian. Steffen Glacier on the Northern Patagonian Ice Field is named after him. Provided by Wikipedia
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Published: 1977
Superior document: Preliminary report / Yemen Arab Republic 4
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Published: 1978