@book { ToteOmaAhoi,
    title = "Tote Oma Ahoi!",
    subtitle = "Kriminalroman",
    author = "Christiane {Martini}",
    year = "2017",
    publisher = "dotbooks Verlag",
    address = "München, Deutschland",
    url = "https://www.dotbooks.de/document/380942"
}