@book { PrsenzundMacht,
    title = "Präsenz und Macht",
    subtitle = "Eine Untersuchung zur «Martina» Hugos von Langenstein",
    author = "Robert {Mohr}",
    year = "2010",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1135579"
}