Article, 1961, Roland F. Pease Jr. Testimonial of Roland F. Pease Jr. on the blue monochromes seen at the Leo Castelli exhibition, 1961
Photo, October 15 1955 Bernadette Allain at the opening of the exhibition "Yves: paintings", Lacoste Publishing - Club des Solitaires
Photo, January 1957 Yves Klein making a Judo catch during his exhibition "Yves Klein: Proposte monocrome, epoca blu", Galleria Apollinaire
Photo, 1959 Inauguration of the Gelsenkirchen Opera Theater in the presence of Jean Tinguely and Yves Klein