1. M. Hasegawa:Stainless Steels Handbook, Nikkan Kougyo Shinbunsha, 1987, p. 13.
2. Y. Ujihira:Tracer, 1984, vol. 9, p. 2.
3. Y. Ujihira:Radioisotopes, 1986, vol. 35, p. 560.
4. Degussa GmbH:Durferrit Handbuch, p. 84.
5. J. Muller:Metalloberfläche, 1955, vol. 9, p. 52(B).