@book { HerrschaftundReform,
    title = "Herrschaft und Reform",
    author = "Stefan {Ellenberg}",
    year = "2012",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-01394-8",
    url = "https://www.peterlang.com/document/1046889"
}