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
Exhibition, 30 Jun 1966 - 31 Jul 1966 Yves Klein : Peintures de feu Galerie Bonnier, Geneva, Switzerland