@book { DieHeldenvonBurgLovat,
    title = "Die Helden von Burg Lovat",
    author = "Elkie {Kammer} and Hildegard {Kammer}",
    year = "2022",
    publisher = "via tolino media",
    address = "München, Deutschland",
    url = "https://tolino.openpublishing.com/document/1272345"
}