1. H. H. Uhlig, ‘Corrosion and Corrosion Control’, Wiley and Sons, New York, London (1963).
2. C. Wagner and W. Traud,Z. Electrochem.,44 (1938) 391.
3. H. Kaesche, ‘Die Korrosion der Metalle’, Springer Verlag, Berlin (1966).
4. Ibid., Ch. 8.
5. M. Stern,Corrosion,14 (1958) 329t.