@book { DieLiebesformelAnnSophieundilgrandeamore,
    title = "Die Liebesformel: Ann-Sophie und il grande amore",
    subtitle = "Roman",
    author = "Annegrit {Arens}",
    year = "2017",
    publisher = "dotbooks Verlag",
    address = "München, Deutschland",
    url = "https://www.dotbooks.de/document/365516"
}