1. A. A. Fyodorov, V. A. Shurov, M. S. Gaisinovich, I. V. Fyodorova: Abst. 4th European Conf. on Materials and Processes, St-Petersburgh, p. 14, 1993.
2. A. A. Ketov, Z. R. Ismagilov: Abst. 4th European Conf. on Materials and Processes, St-Petersburg, p. 14, 1993.
3. A. N. Pestryakov, V. A. Ametov: Zh. Prikl. Khim.,66, 2394 (1993).
4. A. N. Pestryakov, A. N. Devochkin: React. Kinet. Catal. Lett.,53, 33 (1994).