WASET
    B. A. Berns and  V. Romanovicz and  M. M. de Camargo Forte and  D. E. O. S. Carpenter,  Development and Characterization of a Polymer Composite Electrolyte to Be Used in Proton Exchange Membranes Fuel Cells.   journal   = {International Journal of Energy and Power Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2013, vol. 84(12). 1051 - 1056
    [viewed 28 March 2024]. Available from: https://publications.waset.org/pdf/9997501.