1. M. Faure, Faure Secondary Battery, Electrician 6:323 (May 7, 1881); J. S. Sellon, Improvements in Secondary Batteries or Magazines of Elctricity, British Patent 3987, September 15, 1881.
2. J. T. Crennell and A. G. Milligan, The Use of Antimonial Lead for Accumulator Grids: A Cause of Self-Discharge of the Negative Plates, Trans. Faraday Soc. 27: 103 (1931).
3. H. E. Haring and U. B. Thomas, The Electrochemical Behavior of Lead, Lead-Antimony and Lead-Calcium Alloys in Storage Cells, Trans. Electrochem. Soc. 68: 293 (1935).
4. U. B. Thomas and H. E. Haring, Corrosion and Growth of Lead-Calcium Alloy Storage Battery Grids as a Function of Calcium Content, ibid. 92: 313 (1947).
5. D. E. Koontz, D. O. Feder, L. D. Babusci and H. J. Luer, Reserve Batteries for Bell System Use: Design of the New Cell, Bell System Tech. J. 49: 1253 (1970).