@book { UnterrichtsplanungzuSchillersMariaStuart,
    title = "Unterrichtsplanung zu Schillers Maria Stuart",
    author = "Ulrike {Roder}",
    year = "2012",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783656125396",
    url = "https://www.hausarbeiten.de/document/187873"
}