@book { DerErsteundderLetzte,
    title = "Der Erste und der Letzte",
    subtitle = "Studien zum Buch der Offenbarung",
    author = "Ekkehardt {Müller}",
    year = "2011",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1135682"
}