1. L. S. Darken, Transactions of the AIME 54, 600 (1961).
2. C. Wagner, Zeitschrift-fuer-Elektrochemie 63, 772 (1959).
3. Since Wagner’s paper was written in Germany, this paragraph was found in a book by David Young, in “High Temperature Oxidation and Corrosion of Metals”, Elsevier Science; 1 edition (October 17, 2008).
4. R. A. Rapp, Acta Materialia 9, 730 (1961).
5. A. Nesbitt, Journal of the Electrochemical Society 136, 1511 (1989).