@book { DiefamiliengerechteBesteuerung,
    title = "Die familiengerechte Besteuerung",
    author = "Wiebke {Goebbels}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1090487"
}