1. E. Ahronotitz and M. Habib, CICC: Un logiciel de compression d'images par codes de contours, Rapport de l'Ecole de Mines, Saint-Etienne (1986)
2. G.E. Andrews,q-series: their development and application in analysis, number theory, combinatories, physics, and computer algebra, AMS, Library of congress Cataloguing-in-Publication Data (1986).
3. E. Barcucci, R. Pinzani and E. Rodella, Some properties of binary search networks, Research Report 1/90, Dipartimento di Sistemi e Informatica, Universit� de Florence (1990).
4. R.J. Baxter,Exactly Solved Models in Statistical Mechanics, (Academic Press New York, 1982).
5. D. Beauquier and M. Nivat, Tiling with polyominoes, Report LITP 88-66, Universit� Paris VII (1988).