@book { DerUntergangdermykenischenKultur,
    title = "Der Untergang der mykenischen Kultur",
    author = "Christoph-Maria {Liegener}",
    year = "2018",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    url = "https://www.hausarbeiten.de/document/436837"
}