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2. - Private communications.
3. Special IBM Technical Report;B. Roos,1968
4. Roothaan, C. C. J., and P. S. Bagus: Methods in computational physics, 2, 47. New York: Academic Press 1963.
5. Clementi, E.: Atomic energy tables, Supplement to IBM J. of Res. Develop. 9, 1 (1965).