@book { FrauenimMittelalter,
    title = "Frauen im Mittelalter",
    author = "Kathrin {Schroeder}",
    year = "2002",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640044559",
    url = "https://www.hausarbeiten.de/document/106176"
}