[1] Forsch Zentrum Julich, Julich, Germany
[2] Rhein Westfal TH Aachen, Aachen, Germany
[3] European Fuel Cell Forum AG, Luzern, Switzerland
[4] Univ Southampton, Southampton, England
[5] Delft Univ Technol, Delft, Netherlands
[6] Tech Univ Munich, Munich, Germany