@book { WohnenundgeistigeBehinderung,
    title = "Wohnen und geistige Behinderung",
    author = "Kristin {Sonnenberg}",
    year = "2007",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836602372",
    url = "https://m.diplom.de/document/228813"
}