@book { DieFrauimaltenRom,
    title = "Die Frau im alten Rom",
    author = "Heike {Büttner}",
    year = "2000",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832426101",
    url = "https://m.diplom.de/document/218395"
}