@book { DerPlayboygraf,
    title = "Der Playboygraf",
    subtitle = "Ein Fürstenherz-Roman - Band 2",
    author = "Claudia {von Auersberg}",
    year = "2014",
    publisher = "dotbooks Verlag",
    address = "München, Deutschland",
    url = "https://www.dotbooks.de/document/273033"
}