Francoise Chaitin-Chatelin,
University of Toulouse I and CERFACS,
42, av. G.
Coriolis - 31057 Toulouse Cedex
chatelin@cerfacs.fr
Stefan Vandewalle,
Katholieke Universiteit Leuven,
Department
of Computerscience Celestijnenlaan 200A, B-3001 Leuven, Belgium,
stefan.vandewalle@cs.kuleuven.ac.be
Jeff Cash,
Imperial College of Science, Technology and Medicine, Department of Mathematics,
Huxley Building, Imperial College, 180 Queen's Gate - London, SW7 2BZ ,
Francesca Mazzia,
Università di Bari, Dipartimento di Matematica,
via Orabona 4 - 70125 Bari,
Ivonne Sgura,
Università di Lecce, Dipartimento di Matematica,
via Provinciale Lecce-Arnesano P. O. Box 193 - 73100 Lecce,
