Challenging modernity: Dada between modern and postmodern Mark A. Pegrum, p. 46: The Dadaists who engaged most seriously with the Marxist myth are Wieland Herzfelde, John Heartfield and to a lesser extent George Grosz, all of whom join the KPD in December 1918.
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[1], Canon van de Moderne Kunst. Gearchiveerd op 26 maart 2023.
