Article, 1961, Roland F. Pease Jr. Testimonial of Roland F. Pease Jr. on the blue monochromes seen at the Leo Castelli exhibition, 1961
Photo, 1968 Rotraut in front of the Relief Portrait of Arman (PR 1) during the exhibition "Yves Klein", Louisiana Museum
Artwork, 1962 Transfer of a Zone of Immaterial Pictorial Sensibility to Claude Pascal. Series n°1, Zone 06