Determination of the Mathematical Model for Plasma Electronic Coefficients of the Earth’s Ionosphere. Iraqi Journal of Science, [S. l.], v. 64, n. 3, p. 1508–1517, 2023. DOI: 10.24996/ijs.2023.64.3.39. Disponível em: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/6646.. Acesso em: 4 may. 2024.