2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/48850In this talk I present the current status of the family of Monte Carlo programs for four-fermion physics based on the Yennie-Frautschie-Suura resummation of soft real and virtual photons. I focus on their applications to LEP2.10 pages, uses sprocl.styHigh Energy Physics - Phenomenologytext