1. M. Misono: Proc. Climax 4th Int. Conf. on the Chemistry and Uses of Molybdenum p. 289, Climax Molybdenum Company, Ann Arbor, Michigan 1982.
2. T. Okuhara, A. Kasai, N. Hayakava, M. Misono, Y. Yoneda: Chem. Lett., 391 (1981).
3. T. Okuhara, T. Hibi, S. Tatematsu, T. Ichiki, M. Misono: Actas Simp. Iberoam. Catal., 9th, 1984, 1, p. 623.
4. G.A. Tsigdinos: Ind. Eng. Chem., Prod. Res. Develop.,13, 267 (1974).
5. G.A. Tsigdinos, C.J. Hallada: Inorg. Chem.,7, 437 (1968).