2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/45567Status of nonfactorizable effects in exclusive hadronic weak decays of $D$ and $B$ mesons is reviewed.Latex and Worldsci.sty, 6 pages, invited talk presented at The International Symposium on Particle Theory and Phenomenology, Iowa State University, May 22-24, 1995High Energy Physics - Phenomenologytext