@book { LockrufdesGoldesInEinfacherSprache,
    title = "Lockruf des Goldes: In Einfacher Sprache",
    author = "Jack {London} and André {Graf}",
    year = "2024",
    publisher = "adlima GmbH",
    address = ", Deutschland",
    url = "https://tolino.openpublishing.com/document/1489672"
}