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3. D. P. Wilkinson and J. St.-Pierre ,Handbook of Fuel Cells: Fundamentals, Technology and Applications, Vol. 3, W. Vielstich , A. Lamm and H. A. Gasteiger , Editors, p. 611, Wiley, New York (2003).
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5. V. Mittal, C. Paik, and S. Motupally , Abstract 772, The Electrochemical Society Meeting Abstracts, Vol. 2005-1, Quebec City, Canada, May 15–20, 2005.