@book { DieMachtderOhnmacht,
    title = "Die Macht der Ohnmacht",
    subtitle = "Leben und Politik des Franz Xaver Ritter von Epp (1868-1946)",
    author = "Katja-Maria {Wächter}",
    year = "1999",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1087846"
}