SHUN, W.; ZIWEI, C.; FENG, Z.; ZHAOQIAN, G.; JUTAO, L.; GUANGYOU, F. A method for separating O-wave and X-wave and its application in digital ionosonde. Annals of Geophysics, [S. l.], v. 56, n. 5, p. A0567, 2014. DOI: 10.4401/ag-6318. Disponível em: https://www.annalsofgeophysics.eu/index.php/annals/article/view/6318. Acesso em: 16 oct. 2021.