@book { SwazilandsInternationalRelationsandForeignPolicy,
    title = "Swaziland's International Relations and Foreign Policy",
    subtitle = "A Study of a Small African State in International Relations",
    author = "Paul-Henri {Bischoff}",
    year = "1990",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    url = "https://www.peterlang.com/document/1074093"
}