@book { ThermodynamischeModellierungderEnergieumwandlunginPEMBrennstoffzellen, title = "Thermodynamische Modellierung der Energieumwandlung in PEM-Brennstoffzellen", author = "Thomas {Pfeifer}", year = "2002", publisher = "Diplom.de", address = "Hamburg, Germany", doi = "10.3239/9783832459895", url = "https://m.diplom.de/document/221436" }