References

1

A. Szabo and N. S. Ostlund, Modern Quantum Chemistry, 1st ed., revised, p. 235, McGraw-Hill, 1989.

2

I. Shavitt, in Modern Theoretical Chemistry, edited by H. F. Schaefer (Plenum, New York, 1977), Vol. 3, ch. 6, § 9.

3

C. D. Sherrill, ``Some Comments on CI Natural Orbitals'', Book `o Knowledge.

4

R. S. Grev and H. F. Schaefer, J. Chem. Phys. 96, 6850 (1992).

5

J. T. Fermann, C. D. Sherrill, T. D. Crawford, and H. F. Schaefer, J. Chem. Phys. 100, 8132 (1994).

6

C. D. Sherrill, ``Some Comments on The First Order Interacting Space'', Book `o Knowledge.