@book { MordenimNordenVierKrimisineinemeBook,
    title = "Morden im Norden: Vier Krimis in einem eBook",
    author = "Ole {Hansen} and Silke {Jensen} and Andreas {Schmidt} and Christiane {Martini}",
    year = "2020",
    publisher = "dotbooks Verlag",
    address = "München, Deutschland",
    url = "https://m.dotbooks.de/document/511692"
}