Integrable Systems, Quantum Groups and Quantum Field Theories
Proceedings of the NATO Advanced Study Institute and XXIII GIFT International Seminar on 'Recent Problems in Mathematical Physics', Salamanca, Spain, June 15-27, 1992
North Atlantic Treaty Organization, NATO Advanced Study Institute on Compute, Manuel F.O.Seabra Pereira, Jorge A. C. Ambrosio, Jorge A.C. Ambroacutesio