FONTOURA DA COSTA, A. Astronomical Fixes by Azimuth — Astronomical Fixes by Simultaneous Altitude and Azimuth of the Sun - Radiogoniometric Fixes for Distances nearer the Station. The International Hydrographic Review, [S. l.], n. 2, 2018. Disponível em: https://journals.lib.unb.ca/index.php/ihr/article/view/27589. Acesso em: 17 aug. 2024.