@book { DasRechtderKabelweitersendung,
    title = "Das Recht der Kabelweitersendung",
    author = "Elmar {Mand}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1098351"
}