@book { DerkommunikativeStilderGrnenimhistorischenWandel,
    title = "Der kommunikative Stil der Grünen im historischen Wandel",
    author = "Erik {Harms-Immand}",
    year = "2011",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-00569-1",
    url = "https://www.peterlang.com/document/1054017"
}