@book { DerJahrmarktzuJakobi,
    title = "Der Jahrmarkt zu Jakobi",
    subtitle = "Historischer Kriminalroman",
    author = "Susanne {Bonn}",
    year = "2018",
    publisher = "dotbooks Verlag",
    address = "München, Germany",
    url = "https://www.dotbooks.de/document/335610"
}