Characterization of fuel cells and fuel cell systems using three-dimensional X-ray tomographyGriesser, Stefan; Buchinger, G.; Raab, T.; Claassen, D.P.; Meissner, DieterJournal of fuel cell science and technology2007 / 1, p. 84-87 https://asmedigitalcollection.asme.org/electrochemical/article/4/1/84/459547/Characterization-of-Fuel-Cells-and-Fuel-Cell