@book { SeanOCaseyunddasdeutschsprachigeTheater19481974,
    title = "Sean O'Casey und das deutschsprachige Theater (1948-1974)",
    author = "",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1071996"
}