1. Nicolas Barnier and Pascal Brisset. Facile: a functional constraint library. In Proceeding of CICLOPS2001, Paphos, 2001.
2. M. B. Cohen, C. J. Colbourn, L. A. Ives, and A. C. H. Ling. Kirkman triple systems of order 21 with nontrivial automorphism group. Mathematics of Computation, 2001.
3. CP’01: 7th International Conference on Principle and Practice of Constraint Programming, Paphos, Cyprus, 2001.
4. CPAIOR’ 02: Fourth International Workshop on Integration of AI and OR Techniques in Constraint Programming for Combinatorial Optimisation Problems, Le Croisic, France, 2002.
5. Torsten Fahle, Stefan Schamberger, and Meinolf Sellmann. Symmetry breaking. In CP’01 [3], pages 93–107.