| | | 1989 | |
| | | 1994 | |
| | | 1991 | |
| | | 1988 | |
| | | 1988 | |
| | Anelli, Pier LucioAshton, Peter R.Philp, DouglasPietraszkiewicz, MarekReddington, Mark V.Spencer, NeilStoddart, J. FraserVicent, CristinaBallardini, RobertoBalzani, VincenzoGandolfi, Maria TeresaProdi, LucaDelgado, MilagrosGoodnow, Timothy T.Kaifer, Angel E.Slawin, Alexandra M.Z.Williams, David J. | 1992 | |
| | | 1991 | |
| | | 1991 | |