1. Shvartz, G. L., and Kristal, M. M., “Corrosion of Chemical Apparatus”, p. 84. Translated from Russian by Consultants Bureau Inc., New York (Chapman and Hall Ltd., London, 1959).
2. Castaing, R., Ph.D. Thesis University of Paris (1951). Castaing, R., Philibert, J., and Crussard, C., Trans. Amer. Inst. Met. Eng., 209, 389 (1957).