1. H. Nilles, Phys. Rep. 110 (1984) 1; H.E. Haber, G. Kane, Phys. Rep. 117 (1985) 75.
2. W.de Boer, A. Dabelstein, W. Hollik, W. Mösle, U. Schwickerath, Updated global fits of the SM and the MSSM to electroweak precision data, preprint IEK-KA.96-07, hep-ph/9609209; W. Hollik, preprint KA-TP-12-1997, to appear in the Second Edition of Heavy Flavours, A.J. Buras, M. Lindner (Eds.), World Scientific, 1997.
3. P.H. Chankowski, S. Pokorski, hep-ph/9707497, to appear in Perspectives on Supersymmetry, G.L. Kane (Ed.), World Scientific, 1997.
4. J.F. Gunion, H.E. Haber, G.L. Kane, S. Dawson, The Higgs Hunters' Guide, Addison-Wesley, Menlo-Park, 1990.
5. J. Ellis, G. Ridolfi, F. Zwirner, Phys. Lett. B 262 (1991) 477; A. Brignole, J. Ellis, G. Ridolfi, F. Zwirner, Phys. Lett. B 271 (1991) 123; H.E. Haber, R. Hempfling, Phys. Rev. Lett. 66 (1991) 1815; Phys. Rev. D 48 (1993) 4280.