BOAGA, G. COLEGAMENTO GRAVIMETRICO PADOVA-PISA. Annals of Geophysics, [S. l.], v. 2, n. 1, p. 13–18, 1949. DOI: 10.4401/ag-5942. Disponível em: https://www.annalsofgeophysics.eu/index.php/annals/article/view/5942. Acesso em: 3 aug. 2021.