@book { Lethtreexpressionnisteetlesacr,
    title = "Le théâtre expressionniste et le sacré",
    subtitle = "Georg Kaiser, Ernst Toller, Ernst Barlach",
    author = "Catherine {Mazellier-Grünbeck}",
    year = "1994",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    url = "https://www.peterlang.com/document/1116846"
}