@book { DerBriefalsMediumder,
    title = "Der Brief als Medium der αγάπη",
    subtitle = "Eine Untersuchung zur rhetorischen und epistolographischen Gestalt des Philemonbriefes",
    author = "Christopher {Kumitz}",
    year = "2004",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1097827"
}