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Lua i Stíl Chicago (17ú heag.)Lethen, Helmut. "Modernism Cut in Half: The Exclusion of the Avant-garde and the Debate on Postmodernism / Helmut Lethen." Approaching Postmodernism : Papers Presented at a Workshop on Postmodernism, 21-23 September 1984, University of Utrecht.(1986) .
Lua MLA (8ú heag.)Lethen, Helmut. "Modernism Cut in Half: The Exclusion of the Avant-garde and the Debate on Postmodernism / Helmut Lethen." Approaching Postmodernism : Papers Presented at a Workshop on Postmodernism, 21-23 September 1984, University of Utrecht.(1986), .