1. R. M. Hochstrasser, Can. J. Chem.,38, 233 (1960).
2. A. V. Shablya, Author's Abstract of Candidate's Dissertation, Leningrad (1971).
3. B. M. Uzhinov, A. B. Demyashkevich, and M. G. Kuz'min, Zh. Prikl. Spektrosk.,20, No. 3, 421 (1974).
4. V. Zanker, Z. Phys. Chem. (Fr.),26, 168 (1960).