@book { DieRundfunkgebhrinderSchweiz,
    title = "Die Rundfunkgebühr in der Schweiz",
    author = "Karl J. {Schneider-Marfels}",
    year = "2021",
    publisher = "Meidenbauer",
    address = ", Germany",
    url = "https://www.peterlang.com/document/1098672"
}