@book { DasVerfassungsphnomenderGleichheitcontralegem,
    title = "Das Verfassungsphänomen der Gleichheit contra legem",
    author = "Peter {Ulrich}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1089931"
}