1. Padovani, C., Salvi, G., Fiumara, A., World Petroleum Congress Proceedings, 4th, 85, papers 5 and 6, Rome (1955).
2. The catalytic oxidation of methane to carbon monoxide and hydrogen
3. Blanchard, L. P. and Singh, J., Rapports annuels au Conseil National de Recherche, Ottawa, (1963 et 1964).
4. Bussière, P., Devore, P., Domanski, B. and Prettre, M., Actes Intern. Conf. Catal. - Paris (1960).