. "1917Z"^^ . . . . . . "Beno Eckmann"@en . . "2008-11-25Z"^^ . . "Swiss mathematician" . . . "2008Z"^^ . . . "Beno Eckmann (March 31, 1917 \u2013 November 25, 2008 in Zurich) was a Swiss mathematician who was a student of Heinz Hopf."@en . "1917-03-31Z"^^ . . . . "Eckmann, Beno"@en . . .