2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/491241) Hard exclusive processes in QCD: main characteristic properties; 2) Experimental and theoretical status of the J/Psi and Psi^\prime decays.15 pages, Latex, 15 figures, minor changes; The talk given at the International Workshop: "e^+e^- collisions from ϕto J/Psi", 1-5 March 1999, Novosibirsk, RussiaHigh Energy Physics - PhenomenologyHigh Energy Physics - Experimenttext