1. H. A. Lorentz:The Theory of Electrons and Its Application to the Phenomena of Light and Radiant Heat, II edition (Leipzig, 1916), p. 132. (A course of lectures delivered at Columbia University, New York, March and April 1906).
2. J. Neufeld:Phys. Rev.,152, 708 (1966).
3. See for instance,I. E. Tamm:Osnovy Teorii Elektrichestva (Foundations of the Theory of Electricity) (Moscow, 1949), p. 353.
4. I. E. Tamm:Osnovy Teorii Elektrichestva (Foundations of the Theory of Electricity) (Moscow, 1949), p. 419.
5. SirG. G. Stokes:Smith’s Prize Examinations (Cambridge, 1876).