@book { PolitischeSprachspieleinderDDR,
    title = "Politische Sprachspiele in der DDR",
    author = "Steffen {Pappert}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1095849"
}