Gherm, V. E., N. N. Zernov, and H. J. Strangeways. “Investigation into the Problem of Characterization of the HF Ionospheric Fluctuating Channel of Propagation: Construction of a Physically Based HF Channel Simulator”. Annals of Geophysics 47, no. 2-3 Sup. (December 25, 2004). Accessed January 20, 2022. https://www.annalsofgeophysics.eu/index.php/annals/article/view/3289.