Proceedings of the Workshop J.R. Oppenheimer Study Center Los Alamos, New Mexico, 4–6 May, 1988

Proceedings of the Winter School, Les Houches, France, February 21–28, 1989

Proceedings of the Workkshop, Les Houches, France February 24–March 6, 1987

Proceedings of the Second International Conference Schwäbisch Hall, Fed. Rep. of Germany, July 30–August 3,1990

Recent Developments Proceedings of the 2nd International Conference, Santa Clara, CA, December 15—16, 1988

Proceedings of the 2nd International Conference, Physik Zentrum, Bad Honnef, Fed. Rep. of Germany, June 25–28, 1991

Proceedings of the Fourth International Symposium, Hamilton, New Zealand, February 10–15, 1986

Proceedings of the Workshop, Les Houches, France February 26–March 5, 1986

Proceedings of the 5th IFF-ILL Workshop, Jülich, Fed. Rep. of Germany, October 5–7, 1988

Osaka, Japan, September 17–22, 2000