@book { EinschnellesAngebot,
    title = "Ein schnelles Angebot",
    subtitle = "Thriller",
    author = "Tom {Kristensen} and Günther {Frauenlob}",
    year = "2017",
    publisher = "dotbooks Verlag",
    address = "München, Deutschland",
    url = "https://www.dotbooks.de/document/380871"
}