1. I. R. Krichevskii and Ya. S. Kazarnovskii, Zh. Fiz. Khim.,13, No. 2 (1939).
2. Ya. S. Kazarnovskii, Zh. Fiz. Khim.,14 (1940).
3. M. Temkin, Zh. Fiz. Khim.,17, No. 4 (1943).
4. L. N. Burshtein, Izmer. Tekh., No. 12 (1975).
5. H. Reamer et al., Ind. Eng. Chem.,36, No. 1 (1944).