@book { SystemischeMethodeninderstationrenKinderundJugendhilfe,
    title = "Systemische Methoden in der stationären Kinder und Jugendhilfe",
    author = "Markus {Weißschnur}",
    year = "2009",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640921454",
    url = "https://www.hausarbeiten.de/document/136121"
}