@book { HistorischerSachunterrichtinderGrundschule,
    title = "Historischer Sachunterricht in der Grundschule",
    author = "Kathrin {Morawietz}",
    year = "2005",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783638361293",
    url = "https://www.hausarbeiten.de/document/36530"
}