@book { UnStimmigkeitenbeiUlrichPlenzdorf,
    title = "(Un-)Stimmigkeiten bei Ulrich Plenzdorf",
    author = "Mark-Oliver {Carl}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1105426"
}