1. Weisser, O. and Landa, S., “Sulfide Catalysts: Their Properties and Applications”, Pergamon Press, Oxford (1973).
2. Donati, E. E., “Advances in Catalysis”, Vol. VIII, 39, Academic Press, New York (1956).
3. Chianelli, R. R. and Dines, M. B., Inorganic Chem., 17, 2758 (1978).
4. Passaretti, J. D., Collins, R. C., Wold, A., Pecoraro, T. A., and Chianelli, R. R., Mat. Res. Bull., in press (1979).
5. Pecoraro, T. A. and Chianelli, R. R.J. Cat., 67, 430–445 (1981).