D. Alpay, Beer Sheva, Israel, group VU
C. Aliprantis, Purdue, U.S.A., group TUD
D.Z. Arov, Odessa, Ukraine, group VU
J.A. Ball, Blacksburg VA, U.S.A., group VU
Z. Brze'zniak, Hull, U.K., group TUD
S. Cerrai, Florence, Italy, group TUD
J. Chabrowski, Brisbane, Australia & Louvain, Belgium, group TUD
J. Conradie, Cape Town, South-Africa, group TUD
E. Crooks, Bath, U.K., group VU
R. C. Dalang, Lausanne, Switzerland, group TUD
W. Desch, Graz, Austria, group TUD
Th. Fack, Lyon, France, group TUD
B. Fiedler, Berlin, Germany, group VU
N. Ford, Chester, U.K., group VU
M. Garc'ia-Huidobro, Chile, group TUD
B. Goldys, New South Wales, Australia, group TUD
J.J. Grobler, Potchefstroom, South-Africa, group TUD & VU
H.-Ch. Grunau, Bayreuth, Germany, group TUD
G. Heinig, Kuwait, group VU
R. Joosten, Lausanne, Switzerland, group TUD
G. Lancien, Besançon, France, group TUD
H. Langer, Vienna, Austria, group VU
Y. Lathuskin, Columbia MO, U.S.A., group TUD & VU
W.A.J. Luxemburg, Pasadena CA, U.S.A., group TUD
M. Malamud, Donetsk, Ukraine, group VU
R. Manásevich, Chile, group TUD
C.V.M. van der Mee, Cagliari, Italy, group VU
K. Mischaikow, Atlanta GA, U.S.A., group VU
R. Nussbaum, U.S.A., group VU
J. Prüss, Halle, Germany, group TUD
U. Putschke, Berlin, Germany, group VU
L. Rodman, Williamsburg VA, U.S.A., group VU
H. Rosengren, Lund, Sweden, group TUD
J.V. Stokman, Paris, France, group TUD
E.M. Semenov, Voronezh, Russia, group TUD
G. Simonett, Nashville TN, U.S.A., group TUD
A.L. Sakhnovich, Odessa, Ukraine, group VU
C. Sparrow, Cambridge, U.K., group VU
F.Sukochev, Flinders, Australia, group TUD
H.J. Sussman, U.S.A., group VU
S. Vaes, Louvain, Belgium, group TUD
L.L. Vaksman, Kharhov, Ukraine, group TUD
H.O. Walter, Gießen, Germany, group VU
L. Weis, Karlsruhe, Germany, group TUD
A.W. Wickstead, Belfast, Northern Ireland, group TUD
S. Yakovlev, St-Petersburg, Russia, group VU
J. Zabzcyk, Warsaw, Poland, group VU
The group TUD consists of Ph.P.J.E. Clément, B. de Pagter, G. Sweers, H.T. Koelink, J. van Neerven.
The group VU consists of M.A. Kaashoek, A.C.M. Ran, S.M. Verduyn Lunel.