1. Materials for electrochemical capacitors;Simon;Nat. Mater.,2008
2. W. Crookes (1879), quoted by S. Glasstone in Textbook of Physical Chemistry, Van Nostrand, New York, 1940.
3. On the Elementary Electrical Charge and the Avogadro Constant.;Millikan;Phys. Rev.,1913
4. J. S. Townsend, Electricity in Gases (1879), quoted by S. Glasstone in Textbook of Physical Chemistry, Van Nostrand, New York, 1940.
5. G. Johnstone Stoney, On the cause of double lines and equidistant satellites in the spectra of gases, Phil. Mag. 11 (1881) 381