%0 Journal Article %A Adam Z Weber %B Journal of the Electrochemical Society %D 2008 %F Batt %G eng %N 6 %P B521-B531 %R 10.1149/1.2898130 %T Gas-Crossover and Membrane-Pinhole Effects in Polymer-Electrolyte Fuel Cells %V 155 %8 04/2008