@book { MssenLehrerinnenBeamtesein,
    title = "Müssen Lehrer/innen Beamte sein?",
    author = "Patrick {Wiedemann}",
    year = "2012",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783656098577",
    url = "https://www.hausarbeiten.de/document/185027"
}