1. M. Dine, P. Huet and R. Singleton, Santa Cruz preprint SCIPP 91/08.
2. G. Anderson and L. Hall, Berkeley preprint UCB-PTH-9141.
3. A. Nelson, D. Kaplan and A. Cohen, Boston University preprint BUHEP-91-15.
4. N. Turok and J. Zadrozny, Princeton preprint PUPT-91-1225.
5. Model dependence of the cosmological upper bound on the Higgs-boson mass