1. M. E. Schwartz and L. J. Schaad, J. Chem. Phys. 46, 4112 (1967).JCPSA60021-9606
2. S. Huzinaga, J. Chem. Phys. 42, 1293 (1965).JCPSA60021-9606
3. J. J. Thomson, Phil. Mag. 24, 209 (1912).PHMAA40031-8086
4. J. J. Thomson, Proc. Roy. Soc. (London) 89, 1 (1913).PRLAAZ0950-1207
5. M. E. Schwartz, Ph.D. thesis in Chemistry, Vanderbilt University, December 1965.