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A.P. Nickolaenko
Usikov's Institute for Radio-Physics and Electronics, National Academy of Sciences of the Ukraine
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S.O. Nikolayenko
Physical-Technical Department, Karasin's Kharkov National University
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Yu Schekotov
Institute for Terrestrial Magnetism, Ionosphere and Radio Propagation (IZMIRAN),Russian Academy of Sciences
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M Hayakawa
Department of Electronic Engineering, The University of Electro-Communications