@book { ZurFragederzweckmssigenGestaltgemeindlicherSteuern,
    title = "Zur Frage der zweckmässigen Gestalt gemeindlicher Steuern",
    author = "",
    year = "2018",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b13820",
    url = "https://www.peterlang.com/document/1068398"
}