1. The Collected Works of J. W. Gibbs: In Two Volumes (Longmans, Green and Co., N.Y., 1928).
2. S. Ono and S. Kondo, Handbuch der Physik (Springer, Berlin, 1960).
3. A. I. Rusanov, Phase Equilibria and Surface Phenomena (Khimiya, Leningrad, 1967) [in Russian].
4. A. Adamson, The Physical Chemistry of Surfaces (Wiley, New York, 1976).
5. M. Jaycock and J. Parfitt, Chemistry of Interfaces (Ellis Horwood, Chichester, UK, 1981).