@book { DasMarketingdesinternenKunden,
    title = "Das Marketing des internen Kunden",
    subtitle = "Selektive Rekrutierungs- und Motivationsstrategien der Personalpolitik",
    author = "Adina {Arniella}",
    year = "2002",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832458652",
    url = "https://m.diplom.de/document/221325"
}