%0 Journal Article %A V. I. Arefiev %A M. K. Kocherova %A A. B. Talalaev %A V. V. Tikhonov %T Methods of diagnostics of characteristics of the ionosphere for a given region and correction of ionospheric models in order to improve the accuracy of predicting the propagation of radio waves of decameter range %J Vestnik Tverskogo gosudarstvennogo universiteta. Seriâ Prikladnaâ matematika %D 2016 %P 33-51 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/VTPMK_2016_1_a2/ %G ru %F VTPMK_2016_1_a2