@book { KurzgeschichtensammlungfrKinderundErwachsene,
    title = "Kurzgeschichtensammlung für Kinder und Erwachsene",
    author = "Mario {Otto}",
    year = "2019",
    publisher = "Mario Otto-Verlag",
    address = ", Deutschland",
    url = "https://tolino.openpublishing.com/document/1030538"
}