@book { DiePrinzessinundderHorst,
    title = "Die Prinzessin und der Horst",
    subtitle = "Roman",
    author = "Tine {Wittler}",
    year = "2018",
    publisher = "dotbooks Verlag",
    address = "München, Deutschland",
    url = "https://www.dotbooks.de/document/426022"
}