F. Smith, T. Mather och T.M. Lowry, 1908, The Silver Voltameter. Part I. Part II. i Philosophical Transactions of the Royal Society of London. Series A (1896-1934), vol. 207, sid. 545–599.
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"Interpretation of results by F.E. Smith" på sid. 194 i International committee on electrical units and standards, Special technical committee, 1912, Report to the International Committee on Electrical Units and Standards of a Special Technical Committee Appointed to Investigate and Report on the Concrete Standards of the International Electrical Units and to Recommend a Value for the Weston Normal Cell, Government Printing Office, Washington.