@book { EsbleibtdieAsche,
    title = "Es bleibt die Asche",
    author = "Ross {Pennie} and Tobias {Eckerlein}",
    year = "2021",
    publisher = "dp DIGITAL PUBLISHERS GmbH",
    address = "Stuttgart, Deutschland",
    url = "https://shop.digitalpublishers.de/document/1134601"
}