Zhang, S., X. Huang, Y. Su, and S. M. Radicella. “A Physical Model for One-Dimension and Time-Dependent Ionosphere. Part I. Description of the Model”. Annals of Geophysics 36, no. 5-6 (November 25, 1993). Accessed July 30, 2021. https://www.annalsofgeophysics.eu/index.php/annals/article/view/4249.