ZUCCHERETTI, E. Interfacing and off-line analysis for VOS-1A Barry ionosonde. Annals of Geophysics, [S. l.], v. 41, n. 4, 1998. DOI: 10.4401/ag-3807. Disponível em: https://www.annalsofgeophysics.eu/index.php/annals/article/view/3807. Acesso em: 27 sep. 2022.