%0 Journal Article %A O. I. Akhmetov %A V. S. Mingalev %A I. V. Mingalev %A O. V. Mingalev %A Yu. V. Fedorenko %T Two difference schemes for the numerical solution of Maxwell’s equations as applied to extremely and super low frequency signal propagation in the Earth-ionosphere waveguide %J Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki %D 2014 %P 1656-1677 %V 54 %N 10 %U http://geodesic.mathdoc.fr/item/ZVMMF_2014_54_10_a10/ %G ru %F ZVMMF_2014_54_10_a10