Exploration d’un cerveau éveillé
avec la collaboration de Christophe DUCHATELET Editions Michel LAFON, 2016, , 281 pages
Ed. ESF - Paris 1991
Published by the Elmwood Institute, Berbeley, CA 94705. Edited by "Systems Education Research", Olympia, Wa 98502, first édition, winter 1990 104 pages.