"German mathematician" . "1902-05-28Z"^^ . "Stephan Cohn-Vossen"@en . . . "1936Z"^^ . "1902Z"^^ . "Stefan or Stephan Cohn-Vossen (28 May 1902 \u2013 25 June 1936) was a mathematician, now best known for his collaboration with David Hilbert on the 1932 book Anschauliche Geometrie, translated into English as Geometry and the Imagination. The Cohn-Vossen transformation is also named for him.He was born in Breslau (then a city in the German Empire; now Wroc\u0142aw in Poland)."@en . . . "1936-06-25Z"^^ . . . "Cohn-Vossen, Stephen"@en . . .