@book { GermanColonialisminAfrica,
    title = "German Colonialism in Africa",
    author = "Klaus {Bachmann}",
    year = "2023",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b20859",
    url = "https://www.peterlang.com/document/1362016"
}