@book { EinWeihnachtswunderkommtseltenallein,
    title = "Ein Weihnachtswunder kommt selten allein",
    author = "Dolores {Mey}",
    year = "2021",
    publisher = "dp DIGITAL PUBLISHERS GmbH",
    address = "Stuttgart, Deutschland",
    url = "https://shop.digitalpublishers.de/document/1153967"
}