@book { DieBundesmilitrkommission18191866alspolitischesGremium,
    title = "Die Bundesmilitärkommission (1819-1866) als politisches Gremium",
    author = "Wolfgang {Keul}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1070301"
}