Exhibition, 2 Jan 1957 - 12 Jan 1957 Yves Klein : Proposte monocrome, epoca blu Galleria Apollinaire, Milan, Italy
Exhibition, 28 Apr 1958 - 12 May 1958 La spécialisation de la sensibilité à l’état matière première en sensibilité picturale stabilisée, "Le Vide" [The Specialization of Sensibility in the Raw Material State into Stabilized Pictorial Sensibility, "The Void"] Galerie Iris Clert, Paris, France
Exhibition, 17 Nov 1958 - 30 Nov 1958 Vitesse pure et stabilité monochrome by Yves Klein and Jean Tinguely Galerie Iris Clert, Paris, France
Article, 1961, Roland F. Pease Jr. Testimonial of Roland F. Pease Jr. on the blue monochromes seen at the Leo Castelli exhibition, 1961
Exhibition, 30 Apr 1963 - 20 May 1963 Yves Klein Le Monochrome, Peintures de feu Galerie Tarica, Paris, France