Dip. di Fisica, Università di Pisa, Piazza Torricelli 2, 56125, Pisa, Italy
A. Campo Bagatin & P. Paolicchi
Dip. di Matematica, Università di Pisa, Via Buonarroti 2, 56127, Pisa, Italy
P. Farinella
University of Zaragoza, Spain
Barkin Yu. V.
Département CERGA, Observatoire de la Côte d' Azur, Avenue Copernic, 06130, Grasse, France
P. Bonnefond & P. Exertier
OCA/CERGA, Grasse, France
Eric Bois
A. Mickiewicz University, Poznań, Poland
Sławomir Breiter
Instituto Astronomico e Geofisico Universidade de Sao Paulo, Av. Miguel Stefano 4200, 01065, Sao Paulo Sp, Brasil
Adrian Brunini
Department of Astronomy and Astrophysics Comenius University, Mlynská dolina, 842 15, Bratislava, Czech and Slovak Federal Republic
J. Klačka & J. Kaufmannová
Institut de Physique du Globe de Strasbourg, 5 rue René Descartes, 67084, Strasbourg Cedex, France
Marianne Lefftz & Hilaire Legros
Celestial Mechanics Department, Sternberg State Astronomical Institute, 119 889, Moscow, Russia
Nina A. Solovaya
Astronomical Institute, Slovak Academy of Sciences, 842 28, Bratislava, Czech and Slovak Federal Republic
Eduard M. Pittich