1. A. Brenner. Plating and Surface Finishing, p. 24, July 1984.
2. P and SF report, Plating and Surface Finishing, p. 36 (1984).
3. D.A. Arcilesi, Plating and Surface Finishing, p. 90, June 1981.
4. C.R. Shipley, Jr., Plating and Surface Finishing, p. 92 (1984).
5. A. Brenner and G.E. Riddell, Proc. AES., 33, 23 (1946);