1. Coulson CA (1960) Rev Mod Phys 32: 170
2. Bonaccorsi R, Scrocco E, Tomasi J (1970) J Chem Phys 52: 5270
3. Pullman B (ed) (1978) Intermolecular Interactions: from Diatomics to Biopolymers, Wiley, Chichester
4. Van der Avoird A, Wormer PES, Mulder F, Berns RM (1980) Topics Curr Chem 93: 3
5. Arrighini GP (1982) Intermolecular forces and their evaluation by perturbation theory. Lect Notes in Chemistry 25, Springer, Berlin Heidelberg New York