Happy ISDG people in the following occasions:
- 3rd ISDG Symposium, June 16-17 1988, Sophia Antipolis, France (7 pictures)
- 4th ISDG Symposium, August 9-10 1990, Espoo, Finland (23 pictures)
- 6th ISDG Symposium, July 13-15 1994, St-Jovite, Quebec, Canada (2 pictures)
- 8th ISDG Symposium, July 6-8 1998, Maastricht, the Netherlands (2 pictures)
- ISDG Workshop, July 18-21, 1999, Ischia, Italy (4
pictures)
- 9th ISDG Symposium, December 18-21, 2000, Adelaide, Australia taken by Leon Petrosjan.
Pictures by H. Ehtamo
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