der ZIRKEL
Günter Fruhtrunk (München, 1923 – 1982)
Winfred Gaul (Düsseldorf, 1928 – 2003)
Ulrich Erben (Düsseldorf, 1940)
Imi Knoebel (Dresden, 1940)
Günter Umberg (Bonn, 1942)
Wolfram Ullrich (Würzburg, 1961)
 

Curated by Alberto Zanchetta, 2017
ISBN: 9788894123098

Published on the occasion of the exhibition der ZIRKEL. Six variations on the theme, 21 June - 29 July 2017 at Dep Art Gallery, Milan, Hardcover, texts in Italian and English, 92 pages 

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