Paris, PUF, coll. Que sais-je ? 2014, ISBN-978-2-13-063490-4, 127 p.
Ed. ESF (Collection Communication et Complexité) Paris, 1989 199 p.
InterEdition 1993.
Volume V of the Santa Fé Institute Studies in the Sciences of Complexity, AddisonWesley Pub. Cy. N.Y. 1988. 317 p.