1. H. H. Uhlig, Passivity of metals and alloys, Corros. Sci. 19, 777–792 (1979); History of passivity, experiments and theories, in Passivity of Metals, R. P. Frankenthal and J. Kruger, Eds., pp. 1–28, The Electrochemical Society of America, Princeton, New Jersey (1978).
2. First International Symposium on the Passivity of Metals, Heiligenberg near Darmstadt, Germany, 1957, proceedings in Z. Elektrochem. 62, No. 6 /7 (1958).
3. Second International Symposium on the Passivity of Metals, Toronto, Canada, 1962, contribution papers in J. Electrochem. Soc. 111 (1964).
4. Third International Symposium on the Passivity of Metals, Cambridge, England, 1970, contribution papers in Electrochim. Acta
17, No. 2 (1972).
5. Fourth International Symposium on the Passivity of Metals, Warrenton, Virginia, 1976, Passivity of Metals, Corrosion Monograph Series, R. P. Frankenthal and J. Kruger, Eds., The Electrochemical Society of America, Princeton, New Jersey (1978).