HANKA, W.; KIND, R. The GEOFON Program. Annals of Geophysics, [S. l.], v. 37, n. 5, 1994. DOI: 10.4401/ag-4196. Disponível em: https://www.annalsofgeophysics.eu/index.php/annals/article/view/4196. Acesso em: 21 feb. 2024.