author = { Dep Art Mailand Zanchetta, Alberto },

title = { Der Zirkel Ulrich Erben, Günter Fruhtrunk, Winfred Gaul, Imi Knobel, Wolfram Ullrich, Günter Umberg },

publisher = {Dep Art, arte moderna e contemporanea},

isbn = {9788894123098},

isbn = {889412309X},

keywords = { Art, Abstract Exhibitions Germany , Art, German Exhibitions 20th century , Art, German Exhibitions 21st century , Art, Abstract , Art, German , Bildband , Ausstellungskatalog Dep Art 21.06.2017-29.07.2017 Mailand , Deutschland , Abstrakte Kunst , Geschichte 1972-2017 },

year = {[2017]},

abstract = {Catalog of an exhibition held at the Dep Art, Milan, Italy, June 21-July 29, 2017. - Bound. - Includes bibliographical references},

address = { Milano },

url = { http://slubdd.de/katalog?TN_libero_mab2 }