"1962-03-17Z"^^ . . . . . "1885-09-13Z"^^ . "Wilhelm Johann Eugen Blaschke (13 September 1885 \u2013 17 March 1962) was an Austrian differential and integral geometer.His students included Shiing-Shen Chern, Luis Santal\u00F3, and Emanuel Sperner.In 1916 Blaschke published one of the first books devoted to convex sets: Circle and Sphere (Kreis und Kugel)."@en . . "Austrian mathematician" . . "Wilhelm Blaschke"@en . . . . "1962Z"^^ . . . . "Blaschke, Wilhelm"@en . . "1885Z"^^ .