@book { QualittunterZeitknappheit,
    title = "Qualität unter Zeitknappheit",
    author = "Thorsten {Schockmel}",
    year = "2006",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832499525",
    url = "https://m.diplom.de/document/225068"
}