@book { DasBaslerKonzil,
    title = "Das Basler Konzil",
    author = "Stefan {Sudmann}",
    year = "2011",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-01109-8",
    url = "https://www.peterlang.com/document/1053595"
}