Media type: Article Title: Shock Value : on Sigmar Polke's 1976 retrospective in Düsseldorf Contributor: Mehring, Christine [Author]; Polke, Sigmar [Ill.] imprint: 2014 Published in: Artforum ; 52(2014), 8, Seite 218-227, 282 Language: English ISSN: 0004-3532 Keywords: Polke, Sigmar Origination: Footnote: