Dube, Angelo. “Of Neighbours and Shared Upper Airspaces: The Role of South Africa in the Management of the Upper Airspaces of the Kingdoms of Lesotho and Swaziland”. Comparative and International Law Journal of Southern Africa 48, no. 2 (March 9, 2022): 219–253. Accessed January 29, 2026. https://www.unisapressjournals.co.za/index.php/CILSA/article/view/10847.