1. In Proceedings of Symposium on Diaphragm, Sperators, and Ion Exchange Membranes; Van Zee, J. W.; White, R. E.; Kinoshita, K.; Burney, H. S., Eds.; The Electrochemical Soc.: Princeton, NJ, 1986, p. 133.
2. In Ionomers: Characterization, Theory and Applications; Ed.; CRC Press Inc.: New Jersy, 1996, p. 284.
3. Polymer Electrolytes; The Royal Society of Chemistry: London, 1998, p. 158.
4. In Encyclopedia of Chemical Technology; John Wiley & Sons: New York, 1994, p. 1098, vol. 2.
5. ; Fuel Cell Handbook; Van Nostrand-Reinhold: New York, 1994, p. 284.