@book { ExclusionandInclusion,
    title = "Exclusion and Inclusion",
    subtitle = "Gradations of Whiteness and Socio-Economic Engineering in German Southwest Africa, 1884-1914",
    author = "Robbie {Aitken}",
    year = "2007",
    publisher = "Peter Lang Verlag",
    address = "Oxford, United Kingdom",
    url = "https://www.peterlang.com/document/1102453"
}