@book { BittereLiebe,
    title = "Bittere Liebe",
    subtitle = "booksnacks (Kurzgeschichte, Liebe)",
    author = "Saskia {Louis}",
    year = "2016",
    publisher = "booksnacks",
    address = "Stuttgart, Deutschland",
    url = "https://shop.digitalpublishers.de/document/337410"
}