1. O. V. Bragin, Z. Karpinsky, K. Matusek, Z. Paal. and P. Tetenyi, J. Catal.,56, 219 (1979).
2. T. G. Olfer'eva, S. A. Krasavin, and O. V. Bragin, Izv. Akad. Nauk SSSR. Ser. Khim., 605 (1981); 2518 (1980).
3. C. Corolleur, F. G. Gault, and L. Beranek, React. Kinet. Catal. Lett.,5, 459 (1976).
4. O. V. Bragin, V. G. Tovmasyan, I. V. Gostunskaya, and A. L. Liberman, Izv. Akad. Nauk SSSR, Ser. Khim., 1340 (1977).
5. Yu. N. Savostin and T. A. Maslova, React. Kinet. Catal. Lett.,3, 271 (1975).