@book { DieRechteSchwerbehinderternachSGBIXimberblick,
    title = "Die Rechte Schwerbehinderter nach SGB IX  im Überblick",
    author = "Stefan {Petzold}",
    year = "2009",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640444021",
    url = "https://www.hausarbeiten.de/document/135607"
}