NI’MA, Ali Hussein. Theoretical Calculations of the Seasonal and Solar Activity Variations for Ionospheric Collision Frequency and Debye Length over Baghdad City. Al-Mustansiriyah Journal of Science, Baghdad, Iraq, v. 27, n. 4, 2017. DOI: 10.23851/mjs.v27i4.17. Disponível em: https://mjs.uomustansiriyah.edu.iq/index.php/MJS/article/view/17.. Acesso em: 6 may. 2024.