@book { KuflicheLiebe13Spezial,
    title = "Käufliche Liebe 13 Spezial",
    author = "Sissi {Kaipurgay}",
    year = "2024",
    publisher = "via tolino media",
    address = "München, Deutschland",
    url = "https://tolino.openpublishing.com/document/1488837"
}