Photo, janvier 1961 Yves Klein next to a Sponge Relief (RE 10) lors de son exposition "Yves Klein Monochrome und Feuer", Museum Haus Lange
Artwork, 1962 Transfer of a "Zone of Immaterial Pictorial Sensibility" to Michael Blankfort, Pont au Double, Paris
Artwork, 1962 Transfer of a Zone of Immaterial Pictorial Sensibility to Dino Buzzati. Series n°1, Zone 05