1. A.M. Arthurs and A. Dalgarno, The theory of scattering by a rigid rotator, Proc. R. Soc. London A
256, 540–551 (1960).
2. A.R. Edmonds, Angular Momentum in Quantum Mechanics, Princeton University Press, Princeton, New Jersey (1974).
3. C.G. Gray, On the theory of multipole interactions, Can. J. Phys.
46, 135–139 (1968).
4. H. Rabitz, Effective Hamiltonians in molecular collisions, in Modern Theoretical Chemistry, W.H. Miller, editor, Vol. 1, Plenum Press, New York (1976), pp. 33–80.
5. H. Rabitz, Effective potentials in molecular collisions, Chem. Phys.
57, 1718–1725 (1972).