1. Abramowitz, M., and Stegun, I. A. (1964). “Handbook of Mathematical Functions.” Nat. Bur. Stand., Washington, D.C.
2. Ball, J. S., Chen, J. C. Y., and Wong, D. Y. (1967). Proc. Int. Conf. Phys. Electron. At. Collisions, 5th, p. 20. Nauka, Leningrad.
3. Faddeev Equations for Atomic Problems and Solutions for the (e,H) System
4. Group Theory and the Hydrogen Atom (I)
5. Group Theory and the Hydrogen Atom (II)