Lothar Romain, "Winfred Gaul. Werkverzeichnis Bd. II Gemälde 1962-1983", Düsseldorf 1993, no. 642 (no ill.)
Klaus Honnef, "Winfred Gaul. Retrospektive 1953-1973", Ausst.-Kat. Westfälischer Kunstverein Münster/Städtische Kunstsammlungen Ludwigshafen/Kunsthalle Bielefeld/Ulmer Museum, Münster 1973, no. 90 (no ill)
About Winfred Gaul
Winfred Gaul was a painter-theorist who throughout his life reflected on painting itself. He has become internationally famous as an important representative of German Informel and analytical painting.