1. P.G. de Gennes,Rev. Mod. Phys. 57, 827 (1985)
2. D.E. Sullivan and M.M. Telo da Gama in ?Fluid Interfacial Phenomena?, C.A. Croxton editor (Wiley, New York, 1986), p.45
3. S. Dietrich, in:Phase Transitions and Critical Phenomena, vol 12, editors C. Domb, J.L. Leibowitz (Academic Press New York, 1988), p.1.
4. ?Liquids at interfaces?Les Houches 1988 Session XLVIII (J.Charvolin,J.F.Joanny, J.Zinn-Justin, editors),
5. See the contribution of M.Schick to ref. 4, Section 6.2.