1. Free Energy of a Nonuniform System. I. Interfacial Free Energy
2. DIFFUSE-INTERFACE METHODS IN FLUID MECHANICS
3. J.S. Rowlinson and B. Widom, Molecular Theory of Capillarity (Dover publications, Mineola, NY 1989, 2002).
4. J.D. van der Waals, Verhand. Kon. Akad. V Wetensch. Amst., (1893). (in Dutch
5. English translation in J. Stat. Phys. 20, 197-244 (1979)).