@book { TheProblemofDeFactoStatesinInternationalRelationsinAfrica,
    title = "The Problem of De Facto States in International Relations in Africa",
    author = "Kłosowicz {Robert} and Mormul {Joanna}",
    year = "2024",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1488115"
}