@book { DasgeheimeLieddesDrachenNaylaSeverin,
    title = "Das geheime Lied des Drachen: Nayla & Severin",
    author = "Seleni {Black}",
    year = "2018",
    publisher = "via tolino media",
    address = "München, Deutschland",
    url = "https://tolino.openpublishing.com/document/1436406"
}