N. W. Ashcroft	Cornell University (Ithaca - NY) - USA
S. Casassa	Universita' di Torino (Torino) - Italy
M. Catti	Università di Milano Bicocca (Milano) - Italy
B. Civalleri	Universita' di Torino (Torino) - Italy
F. Corà	The Royal Institution and University College London - U.K.
Y. M. Gupta	Washington State University (Pullman) - USA
A. E. Mattsson	Sandia National Laboratories (Albuquerque - NM) - USA
Y. Noel	Université P. et M. Curie (Paris) - France
R. Orlando	Universita' del Piemonte Orientale (Alessandria) - Italy
W. Perger	Michigan Tech University - USA
C. M. Zicovich Wilson	Universitat Autonoma del Estato de Morelos, Cuernavaca - Mexico