September 1976 issue of + / o Revue d'Art Contemporain. Includes contributions by Jacques Charlier, Dan Graham, Olivier Mosset, Guiseppe Chiari, Francis Picabia, Cesar A. Knokke, Lucio Pozzi, Raymond Hains, Isidore Isou, Jacques-Louis Nyst, and Bernar Venet. Text in French.