@book { SystemgerechteEntstrickungimSteuerrecht,
    title = "Systemgerechte Entstrickung im Steuerrecht",
    author = "Jürgen {Werner}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1135444"
}