R. Al-Ubaidi, N. M., & M. Al-Gbory, M. (2023). Investigating the Accuracy of IRI Model for the Ionospheric TEC parameter during Strong, Severe and Great Geomagnetic Storms from 2000-2013. Iraqi Journal of Science, 57(3A), 2075-2095. https://www.ijs.uobaghdad.edu.iq/index.php/eijs/article/view/9964