1. Talk given at the Joint Int. Lepton-Photon Symposium & Europhysics Conference on High Energy Physics;Plothow-Besch,1991
2. Electroweak radiative corrections with an effective lagrangian: Four-fermions processes
3. Proc. Int. Symposium on Lepton and Photon Interactions at High Energies;Altarelli,1990
4. Talk given at the Joint Int. Lepton-Photon Symposium & Europhysics Conference on High Energy Physics;Carter,1991