1. J.C. Summers, S.A. Ausen: J. Catal.,52, 445 (1978)
2. V.A. Ananin, A.I. Trokhimets, G.M. Senkov: React. Kinet. Catal. Lett.,17, 243 (1981)
3. J.P. Brunelle: in Preparation of Catalysts II, p. 211. Elsevier Scientific, Amsterdam 1979.
4. G.H. Van der Berg, H.Jh. Rijten: in Preparation of Catalysts II, p. 265. Elsevier Scientific, Amsterdam 1979.
5. V.K. Duplyakin, V.B. Fenolonov, K. Richter, A.V. Rodionov, A. Cheflut, L.I. Kheifets, A. V. Neimark, V.V. Moskovtsev: in Scientific Foundations for Catalyst Technology, p. 137. Nauka, Novosibirsk 1981.