@book { ImperialismusundnationaleIdentitt,
    title = "Imperialismus und nationale Identität",
    subtitle = "England und Frankreich in Afrika- 1871–1898",
    author = "Aurelia {Berke}",
    year = "2003",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1096062"
}