Institution: | 1.St. Petersburg Branch of the Institute of Terrestrial Magnetism, Ionosphere, and Radio Wave Propagation, Russian Academy of Sciences, 191023, St. Petersburg, Russia ;2.National Research Center, Kurchatov Institute, 123182, Moscow, Russia ;3.Geological Institute, Kola Science Center, Russian Academy of Sciences, 184200, Apatity, Russia ;4.Center for Physical and Technical Problems of Energy
in the North, Kola Science Center, Russian Academy
of Sciences, 184200, Apatity, Russia ; |