A.F. Yakovets, A. Jahanshir, G.I. Gordienko, B.T. Zhumabayev, Yu.G. Litvinov, & N. Abdrakhmanov. (2019). STATISTICS OF VARIATION RANGE OF F2- LAYER MAXIMUM HEIGHT OF THE IONOSPHERE. Известия НАН РК. Серия физико-математическая, (4), 129–134. извлечено от http://89.250.84.46/physics-mathematics/article/view/1683