Exhibition, 24 Nov 2018 - 20 Jan 2019 Alfred Schmela: A Centenary Exhibition Kunstsammlung Nordrhein-Westfalen, Düsseldorf, Germany
Exhibition, 16 May 2009 - 13 Sep 2009 Yves Klein & Rotraut MASI - Lugano Museo d'arte della Svizzera italiana, Lugano, Switzerland
Exhibition, 14 Jan 1961 - 26 Feb 1961 Yves Klein Monochrome und Feuer Museum Haus Lange, Krefeld, Germany
Exhibition, 31 May 1957 - 23 Jun 1957 Yves Propositions monochromes Galerie Schmela, Düsseldorf, Germany
Document, 1964 Invitation card for the exhibition "Yves Klein Peintures de feu" at the Galerie Schmela, Düsseldorf