"Friese, Christiane; Plakatkunst, 1880-1935, Stuttgart: Klett-Cotta , 1994."@en . . "Bertsch, Karl"@en . . "2015-06-18"^^ . "2015-07-16"^^ . "2015-08-25"^^ . "2015-06-18"^^ . "2015-07-16"^^ . "2015-08-25"^^ . "b. 1895"@en . . .