1. W. Weppner, Ionics1, 1 (1995).
2. J.L. Heilbron, Nature415, 585 (2002).
3. M. Faraday, in: Philosophical Transactions of the Royal Society, Part I (1834) pp. 77.
4. T. Takahashi, in: Materials for Solid State Batteries, (B.V.R. Chowdari and Radhakrishna, Ed.) 1986, pp. 259.
5. S. Aleksiou et al., History of Hellenic Nation, vol. A, (1970).