1. P. Hobza, R. Zahradnik, Intermolecular Complexes, Elsevier, Amsterdam, 1988.
2. B. Pullman, Intermolecular Interactions, from Diatomics to Biopolymers, Wiley, Weinheim, 1978, 447 pp.
3. E. N. Gur’yanova, I. P. Gol’dshtein, I. P. Romm, Donorno-Aktseptornaya Svyaz’ [The Donor-Acceptor Bond], Khimiya, Moscow, 1973, 341 pp. (in Russian).
4. R. Bader, Atoms in Molecules: A Quantum Theory, Oxford University Press, New York, 1994, 458 pp.
5. E. Francisco, A. Martin Pendas, M. A. Blanco, J. Chem. Theory Comput., 2005, 2, 90.