1. R. W. Wvckoff, ?Crystal Structure?, Vol. 1, 2nd Ed., Interscience, New York (1963) p. 259.
2. ?The Electrochemistry of Lead?, (edited by A. T. Kuhn), Academic Press, London (1979) pp. 53?63, 217-51.
3. A. Fukasawa,Japan Kokai JP 52/19230[77/19230] Feb.14 (1977) p. 4.
4. Inam-UI-Haque and A. Mohammad,Pak. J. Sci.,31, (1979) 237.
5. Electrochemistry Group of Guizhou Institute of Metallurgy.Youse Jinshu 34 (1982) 51.