1. Spruch, L. (1993). In Long-Range Casimir Forces, ed. F. S. Levin and D. A. Micha, p. 1. New York: Plenum Press
2. Lide, D. R. (1999). Handbook of Chemistry and Physics, 80th edn. Boca Raton, FL: CRC Press
3. Kittel, C. (1976). Introduction to Solid State Physics, 5th edn. New York: Wiley
4. van der Waals dispersion force contribution to works of adhesion and contact angles on the basis of macroscopic theory