1. Some extensions of the Born approximation for phase shifts;Dashen;Nuovo Cimento,1963
2. V. V. Babikov, Method of phase functions in quantum mechanics (Dubna preprint P-2758, 1966). Usp. Fiz. Nauk 92, No. 1 (1967) (to be published). See also, by the same author: Yadernaya Fiz. 1, 369, 793, 984 (1965) [English transl. Sov. J. Nucl. Phys. 1, 261, 567, 701(1965).
3. Phase shifts and the quantum mechanical Hamilton-Jacobi equation;Kouri;J. Chem. Phys.,1965
4. Theory of low energy scattering by velocity dependent potentials;McKellar;Nuclear Physics,1965
5. Scattering by a cilindrical Gaussian potential: exact solution;Brysk;Canad. J. Phys.,1965