2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/473961. Introduction 2. Charmomium Dissociation and Colour Deconfinement 3. J/Psi Production in Nuclear Collisions 4. Anomalous J/Psi Suppression 5. Outlook and Summary21 pages, latex, figures included, lecture at the 35th course of the International School of Subnuclear Physics, Erice 1997High Energy Physics - Phenomenologytext