@book { Wirkewieduwillst,
    title = "Wirke, wie du willst",
    author = "Yvonne {de Bark}",
    year = "2023",
    publisher = "Schlütersche Verlagsgesellschaft mbH & Co. KG",
    address = ", Deutschland",
    url = "https://schluetersche.openpublishing.com/document/498570"
}