1. A. Bakasov and M. Quack, Chem. Phys. Lett. (submitted).
2. A. Bakasov, R. Berger, T.-K. Ha, and M. Quack (in preparation).
3. M. J. Frisch et al., GAUSSIAN 92, Revision E.2 (Gaussian, Inc., Pittsburgh, PA, 1992); Gaussian 94, Revision A.1 (Gaussian, Inc., Pittsburgh, PA, 1995).
4. See AIP Document No. PAPS JCPSA6-109-303832 for 31 pages of Appendices.
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