Michel Dubois-Violette
LPT, Univ. Paris 11
Harald Grosse
Dept. for Theoretical Physics, Univ. of Wien
Olaf Lechtenfeld
Inst. Fur Theor. Physics, Leibniz Universitat Hannover
Jacques Magnen
CPHT, Ecole Polytechnique
Vincent Rivasseau
LPT, Univ. Paris 11