SETTIMI, A. An in-depth analysis on the Quasi-Longitudinal approximations applied to ionospheric ray-tracing, oblique and vertical sounding, and absorption. Annals of Geophysics, [S. l.], v. 65, n. 1, p. PA103, 2022. DOI: 10.4401/ag-8728. Disponível em: https://www.annalsofgeophysics.eu/index.php/annals/article/view/8728. Acesso em: 5 may. 2024.