@book { DerkleinePrinz,
    title = "Der kleine Prinz",
    author = "Antoine {de Saint-Exupéry} and Wirton {Arvott} and Wirton {Arvott}",
    year = "2023",
    publisher = "Kentauron",
    address = ", Deutschland",
    url = "https://tolino.openpublishing.com/document/1328027"
}