Article, 1961, Roland F. Pease Jr. Testimonial of Roland F. Pease Jr. on the blue monochromes seen at the Leo Castelli exhibition, 1961
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