[1] UNIV CHICAGO, JAMES FRANCK INST, CHICAGO, IL 60637 USA
[2] FREE UNIV BERLIN, INST PHYS & THEORET CHEM, D-1000 BERLIN, GERMANY
[3] UNIV ROCHESTER, DEPT CHEM, ROCHESTER, NY 14627 USA
[4] UNIV TORONTO, CHEM PHYS THEORY GRP, TORONTO, ON, CANADA
[5] UNIV TORONTO, ONTARIO LASER & LIGHTWAVE RES CTR, TORONTO, ON, CANADA
[6] WEIZMANN INST SCI, DEPT CHEM PHYS, IL-76100 REHOVOT, ISRAEL
[7] CALTECH, ARTHUR AMOS NOYES LAB CHEM PHYS, PASADENA, CA 91125 USA
[8] PRINCETON UNIV, DEPT CHEM, PRINCETON, NJ 08544 USA
[9] UNIV WURZBURG, INST PHYS, D-8700 WURZBURG, GERMANY