1. P. A. Schwitzer, Corrosion Protection Handbook, (Ed. by P. A. Schwitzer) Marcel Dekker, New York, 1983, p. 37.
2. W. Z. Friend, Corrosion of Nickel and Nickel Base Alloys, John Wiley and Sons Inc., New York, 1980, p. 136.
3. I. H. Khan, Corrosion Technology; Institute of Chemical Engineering and Technology, Punjab University, Lahore (Pakistan), 1989, Vol. 1, p. 82.
4. M. J. Graham, M. Cohen,Corros. Sci., 32 (1976) 432.
5. J. Dézsi, A. Vértes, L. Kiss,J. Radioanal. Chem., 27 (1965) 63.