1. 1) C.L. Mantell, Electrochemical Engineering, (McGraw-Hill Book Company, Inc., New York, NY, U.S.A., 1960), pp.142-167, 185-192, 210-224.
2. 2) Hitetsu Kinzoku Seiren, (Nippon Kinzoku Gakkai, Sendai, 1980), pp.228,241.
3. 3) Denki Kagaku Binran, (Denki kagaku Kyoukai, Maruzen, Tokyo, 1985), pp.308-327.
4. 4) R.C.Kerby, H.E. Jackson, T.J.O'Keefe and Yar-Ming Wang: Metallurgical Trans. B, 8B(1977), 661-668.