Ed ERES
Ed. Eres , Paris, 2003
Published by the Elmwood Institute, Berbeley, CA 94705. Edited by "Systems Education Research", Olympia, Wa 98502, first édition, winter 1990 104 pages.
Ed. ESF (Collection Communication et Complexité) Paris, 1989 199 p.
Ed. Erès, 2003, ISBN : 2749201187 243 pages
Ed. L'Harmattan, 2006, ISBN 2-296-01824-6, 274 pages
Ed. L'Harmattan. Paris. 1995. 338 pages.