@book { SachlichkeitalsArgument,
    title = "Sachlichkeit als Argument",
    author = "Jürgen {Rekus}",
    year = "2014",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-04569-7",
    url = "https://www.peterlang.com/document/1048625"
}