@book { DerKartografvonLondon,
    title = "Der Kartograf von London",
    subtitle = "Historischer Roman",
    author = "Robert {Goddard} and Peter {Pfaffinger}",
    year = "2020",
    publisher = "dotbooks Verlag",
    address = "München, Deutschland",
    url = "https://www.dotbooks.de/document/514281"
}