@book { ZurRollederDiagnostikinderJugendhilfe,
    title = "Zur Rolle der Diagnostik in der Jugendhilfe",
    author = "Mandy {Hibbeler}",
    year = "2004",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783638293792",
    url = "https://www.hausarbeiten.de/document/27292"
}