1. H. Pauly and J. P. Toennies [Advan. At. Mol. Phys. 1, 195 (1965)] give a general review.AAMOA20065-2199
2. For recent work see papers cited in Ref. 3.
3. E. A. Gislason and G. H. Kwei, J. Chem. Phys. 46, 2838 (1967).JCPSA60021-9606
4. R. Helbing and E. W. Rothe (private communication) have undertaken similar work with Li atom‐molecule systems.
5. R. J. Cross, Jr., E. A. Gislason, and D. R. Herschbach, J. Chem. Phys. 45, 3582 (1966).JCPSA60021-9606