@book { DieMtressedesMarquessErotischerLiebesroman,
    title = "Die Mätresse des Marquess (Erotischer Liebesroman)",
    author = "Gillian {Holden}",
    year = "2016",
    publisher = "via tolino media",
    address = "München, Deutschland",
    url = "https://tolino.openpublishing.com/document/1189320"
}