CLALDEA, R; DOMINICI, P. L’OSSERVATORIO GEOFISICO INSTALLATO A KHARTOUM IN OCCASIONE DELL’ECLISSE DI SOLE DEL 25-2-1952. Annals of Geophysics, [S. l.], v. 5, n. 4, p. 581–589, 1952. DOI: 10.4401/ag-5865. Disponível em: https://www.annalsofgeophysics.eu/index.php/annals/article/view/5865. Acesso em: 1 apr. 2026.