Document, 1959 Yves Klein, Text following the exhibition Motion in Vision / Vision in Motion, Hessenhuis
Document, 1957-1959 Yves Klein, "Règles rituelles de la cession des zones de sensibilité picturale immatérielle"
Document, 1964 Invitation card for the exhibition "Yves Klein Peintures de feu" at the Galerie Schmela, Düsseldorf