IX th EGAS | Kracow, Poland, | 1977 | |
XII th EGAS | Pisa, Italy, | 1980 | |
XX th EGAS | Graz, Austria, | 1988 | |
XXII nd EGAS | Uppsala, Sweden, | 1990 | |
XXIII d EGAS | Torun, Poland, | 1991 | |
XXV th EGAS | Kahn, France, | 1993 |
V th ICPEAC | Leningrad, USSR, | 1967 | |
XI th ICPEAC | Kyoto, Japan, | 1979 |
VI th ICAP | Riga, USSR, | 1978 |
XV th ICPIG | Minsk, USSR, | 1981 |
Turku, Finland, | 1982 |
II nd HCI | Oxford, England, | 1984 | |
V th HCI | Giessen, FRG, | 1990 | |
VI th HCI | Vienna, Austria, | 1994 | |
VII th HCI | Tokyo, Japan, | 1996 |
Trieste, Italy, | 1986 |
Beaulieu-sur-Mer, France, | 1987 | |
Berkeley, USA, | 1992 |
Moscow, USSR, | 1986 |
Cambridge, England, | 1988 |
Denton, USA, | 1994 |
Nagoya, Japan, | 1996 |
Washington, DC, | 1997 |