Article, 1961, Roland F. Pease Jr. Testimonial of Roland F. Pease Jr. on the blue monochromes seen at the Leo Castelli exhibition, 1961
Photo, 1961 Yves Klein at the opening of the exhibition "Concetti spaziali" by Lucio Fontana at Galerie Iris Clert
Artwork, 1962 Transfer of a Zone of Immaterial Pictorial Sensibility to Claude Pascal. Series n°1, Zone 06
Photo, 1961 Pierre Restany during the exhibition "Yves Klein the Monochrome: il nuovo realismo del colore", Galleria Apollinaire