@book { QualittsmanagementinKindertagessttten,
    title = "Qualitätsmanagement in Kindertagesstätten",
    author = "Yvonne {Röhl}",
    year = "2003",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832464288",
    url = "https://m.diplom.de/document/221852"
}