@book { QualittsmanagementinderPersonalentwicklung,
    title = "Qualitätsmanagement in der Personalentwicklung",
    author = "Roberto {Della Schiava}",
    year = "2001",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832436629",
    url = "https://m.diplom.de/document/219312"
}