@book { DerLebenszykluspharmazeutischerProdukte,
    title = "Der Lebenszyklus pharmazeutischer Produkte",
    author = "Matthias {Wenzel}",
    year = "1999",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832417222",
    url = "https://m.diplom.de/document/217592"
}