2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/55694Notes on exact S-matrices in 1+1 dimensions, based on lectures given at the 1996 Eotvos Graduate School, Budapest, and at the Institut Henri Poincare, Paris.41 pages, Latex, uses lamuphys.styHigh Energy Physics - Theorytext