1. I. M. Campbell and B. A. Thrush, Ann. Rept. Progr. Chem. Soc. (London) 62, 17 (1965).
2. W. R. Brennen, J. Chem. Phys. 44, 1793 (1966).JCPSA60021-9606
3. T. Wentink and L. Isaacson, J. Chem. Phys. 46, 822 (1967).JCPSA60021-9606
4. R. A. Young, Can. J. Chem. 44, 1171 (1966).CJCHAG0008-4042
5. K. L. Wray, J. Chem. Phys. 44, 623 (1966).JCPSA60021-9606