%0 Journal Article %T On the group velocity of whistling atmospherics %A Guglielmi, A.V. %A Klain, B.I. %A Potapov, A.S. %K electromagnetic waves, moving plasma, Earth’s magnetosphere, dispersion, propagation path, Green’s function, dynamic spectrum %J Solnechno-Zemnaya Fizika %D 2021 %N 7 %P 4 %I INFRA-M Academic Publishing LLC.