^"UNPO Resolution Concerning the Cabinda Enclave". Retrieved 13 January 2016.
^Evans, Hilary; Gjerde, Arild; Heijmans, Jeroen; Mallon, Bill; et al. "Francisco António Real". Olympics at Sports-Reference.com. Sports Reference LLC. Archived from the original on 18 April 2020. Retrieved 13 January 2016.