@book { AristotelesunddieErhaltungderMauern,
    title = "Aristoteles und die Erhaltung der Mauern",
    author = "Eberhard {Simon}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1101374"
}