@book { KinderverndernihrGesicht,
    title = "Kinder verändern ihr Gesicht",
    author = "Marlis {Schlobben}",
    year = "1997",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832405779",
    url = "https://m.diplom.de/document/216511"
}