1. Ya. B. Zel'dovich, Zh. Fiz. Khim.,22, No. 1 (1948).
2. C. V. Heerden, Ind. Eng. Chem.,45, 1249 (1953).
3. T. Matsura and M. Kato, Chem. Eng. Sci.,22, 171 (1967).
4. V. P. Doronin, M. G. Slin'ko, and V. S. Shepelev, Teor. Osn. Khim. Tekhnol.,12, No. 4 (1978).
5. J. Sinkule, J. Votruba, et al., Chem. Eng. Sci.,3, No. 1 (1976).