@book { Mortificanturundder13Apostel,
    title = "Mortificantur und der 13. Apostel",
    author = "Roland {Geisler} and Julia {Seuser}",
    year = "2016",
    publisher = "via tolino media",
    address = "München, Deutschland",
    url = "https://tolino.openpublishing.com/document/998415"
}