Investigation of the Electron Coefficients of (Ar, He, N2, O2) Gases in the Ionosphere. Baghdad Science Journal, Iraq, Baghdad, v. 19, n. 6(Suppl.), p. 1558, 2022. DOI: 10.21123/bsj.2022.7296. Disponível em: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/7296.. Acesso em: 3 may. 2024.