S. Alouf, Sophia Antipolis, France, G.M. Koole
A.A. Borovkov, Novosibirsk, Russia, O.J. Boxma
P. Dube, Sophia Antipolis, France, G.M. Koole
S.G. Foss, Edinburgh, U.K., O.J. Boxma
T. P. Hill, Atlanta, U.S.A., A. Hordijk
O. Kella, Jerusalem, Israel, O.J. Boxma
A. Mandelbaum, Haifa, Israel, G.M. Koole
Z. Michna, Wroclaw, Poland, K. Dbicki
Ph. Nain, Sophia-Antipolis, France, R. Núñez Queija
M.I. Reiman, Murray Hill, U.S.A., S.C. Borst
T. Rolski, Wroclaw, Poland, S.C. Borst, O.J. Boxma
K. Sigman, New York, U.S.A., S.C. Borst, O.J. Boxma, A. Hordijk
U. Yechiali, Tel-Aviv, Israel, O.J. Boxma, J. van der Wal