@book { MX,
    title = "MÄX",
    subtitle = "Roman",
    author = "Sascha {Heeren} and Mathias {Grimm}",
    year = "2026",
    publisher = "Omnino Verlag",
    address = "Berlin, Deutschland",
    url = "https://shop.omnino-verlag.de/document/1685301"
}