1. Binder, K.: In: Phase transitions and critical phenomena. Domb, C., Lebowitz, J.L. (eds.), Vol. 8, pp. 1. New York: Academic Press 1983
2. Diehl, H.W.: In: Phase transitions and critical phenomena. Domb, C., Lebowitz, J.L. (eds.), Vol. 10, pp. 67. New York: Academic Press 1987
3. Dietrich, S.: In: Phase transitions and critical phenomena. Domb, C., Lebowitz, J.L. (eds.), Vol. 12, pp. 1. New York: Academic Press 1988
4. Lipowsky, R.: Ferroelectrics73, 69 (1987); Rev. Mod. Phys. (in press)
5. Sullivan, D.E.S., Telo da Gama, M.M.: In: Fluid interfacial phenomena. Croxton, C.A. (ed.) New York: Wiley 1986