@book { DasSchicksalderKloneSolarFlare4,
    title = "Das Schicksal der Klone (Solar-Flare 4)",
    author = "Gunnar {Friedrich}",
    year = "2023",
    publisher = "via tolino media",
    address = "München, Deutschland",
    url = "https://tolino.openpublishing.com/document/1321622"
}