@book { KonradBeyerle,
    title = "Konrad Beyerle",
    subtitle = "Sein Wirken für Wissenschaft und Politik in Kaiserreich und Weimarer Republik",
    author = "Thomas {Hense}",
    year = "2002",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1093418"
}