2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/39994Recent theoretical developments in electron-positron annihilation into fermion pairs are summarized. In particular, two-fermion production, DPA for WW signal, single-W production and ZZ signal6 pages(Latex), 4 figures. To appear in Proceedings of ICHEP2000, Osaka, Japan, 27 July - 2 August 2000High Energy Physics - Phenomenologytext