Teixeira De Carvalho AA. Proposal of the Processing Parameters for the Conversion of Rectangular Coordinates of the Luanda Province from Ellipsoid Clark 1880 to WGS 84. SAPIENTIAE [Internet]. 2019 Jul. 10 [cited 2026 Nov. 11];5(1):114-37. Available from: https://publicacoes.uor.edu.ao/index.php/sapientiae/article/view/193