2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/48538The status of precision calculations for the processes e+e- --> WW --> 4 fermions is reviewed, paying particular attention to questions of gauge invariance and recent progress concerning photonic radiative corrections.16 pages, latex, 4 postscript figures, contribution to the proceedings of "IVth International Symposium on Radiative Corrections, RADCOR 98", September 1998, Barcelona, SpainHigh Energy Physics - Phenomenologytext