1. C. B. Moore, J. Chem. Phys. 39, 1844 (1963).JCPSA60021-9606
2. C. B. Moore and G. C. Pimentel, J. Chem. Phys. 40, 329 (1964).JCPSA60021-9606
3. D. E. Milligan, Ph.D. thesis, University of California, Berkeley, 1958.
4. T. D. Goldfarb, Ph.D. thesis, University of California, Berkeley, 1959.
5. B. L. Crawford, W. H. Fletcher, and D. A. Ramsay, J. Chem. Phys. 19, 406 (1951).JCPSA60021-9606