@book { ElternarbeitinderHeimerziehung,
    title = "Elternarbeit in der Heimerziehung",
    author = "Caro {Kaufmann}",
    year = "2009",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640279463",
    url = "https://www.hausarbeiten.de/document/122812"
}