@book { 36KurzgeschichtenfrKinderKurzgeschichtenNr6,
    title = "36 Kurzgeschichten für Kinder (Kurzgeschichten Nr.6)",
    author = "Mario {Otto}",
    year = "2021",
    publisher = "Mario Otto-Verlag",
    address = ", Deutschland",
    url = "https://tolino.openpublishing.com/document/1014938"
}