1. M. Zhao and S. A. Rice, submitted to J. Chem. Phys.
2. M. Zhao and S. A. Rice, submitted to J. Chem. Phys.
3. B. Amstrup, R. J. Carlson, A. Matro and S. A. Rice, J. Phys. Chem. in press
4. P. Brumer and M. Shapiro, Chem. Phys. Lett. 82 177 (1986);
5. C. Asaro, P. Brumer and M. Shapiro, Phys. Rev. Lett. 60 1634 (1988);