Article, 1961, Roland F. Pease Jr. Testimonial of Roland F. Pease Jr. on the blue monochromes seen at the Leo Castelli exhibition, 1961
Document, 1957 Poster for the double exhibition "Yves Klein, Propositions Monochromes" at Galerie Iris Clert and Galerie Colette Allendy
Document, 1963 Poster of the exhibition "Yves Klein le Monochrome - Peintures de Feu", Galerie Tarica
Exhibition, 2 Jan 1957 - 12 Jan 1957 Yves Klein : Proposte monocrome, epoca blu Galleria Apollinaire, Milan, Italy
Exhibition, 5 Jun 1958 First experience of "living brushes" Appartement de Robert Godet 9, rue Le-Regrattier, Île Saint-Louis, Paris, France