1. T. R. Dyke, K. M. Mack, and J. S. Muenter, J. Chem. Phys. 66, 498 (1977).
2. T. R. Dyke, J. Chem. Phys. 66, 492 (1977).
3. L. B. Braly, J. D. Cruzan, K. Liu, et al., J. Chem. Phys. 112, 10293 (2000).
4. I. G. Kaplan, Symmetry of Many-Electron Systems (Nauka, Moscow, 1969; Academic Press, New York, 1975).
5. L. D. Landau and E. M. Lifshitz, Course of Theoretical Physics, Vol. 3: Quantum Mechanics: Non-Relativistic Theory, 3rd ed. (Nauka, Moscow, 1974; Pergamon, New York, 1977).