. "Karl Josef Silberbauer (21 June 1911 \u2013 2 September 1972) was an Austrian police officer, SS-Oberscharf\u00FChrer (staff sergeant), and undercover investigator for the West German Federal Intelligence Service. Silberbauer is best known, however, for his activities in Nazi-occupied Amsterdam during World War II."@en . "1972-09-02Z"^^ . . "Silberbauer, Karl"@en . "1972Z"^^ . . . . . . "1911Z"^^ . "Austrian SS Officer" . "Karl Josef Silberbauer"@en . . . . "Karl Silberbauer"@en . "1911-06-21Z"^^ . .