1. N.F. Mott, H.S.W. Massey, Theory of Atomic Collisions, 3rd edn. (Oxford Clarendon Press, Oxford, 1965)
2. V.A. Kvlividze, S.S. Krasil’nikov, Physics of Atomic Collisions (Moscow State University Publ., Moscow, 1985) [in Russian]
3. H.A. Bethe, in Intermediate Quantum Mechanics (W.A. Benjamin Inc., New York, 1964), Chap. 15
4. L.D. Landau, E.M. Lifshitz, Quantum Mechanics: Non-relativistic Theory, 3rd edn. (Pergamon Press, New York, 1976)
5. A.I. Akhiezer, V.B. Beresteskii, in Quantum Electrodynamics, 4th edn. (Science, Moscow, 1981), Chaps. 4 and 5