Affiliation: | (1) Research Institute of Applied Physics, Irkutsk State University, Irkutsk, Russia;(2) DESY-Zeuthen, Zeuthen, Germany;(3) Skobel’tsyn Institute of Nuclear Physics, Moscow State University, Moscow, Russia;(4) Institute for Nuclear Research, Russian Academy of Sciences, Moscow, Russia;(5) University of Torino, Torino, Italy;(6) Institute of Terrestrial Magnetism, the Ionosphere, and the Radio-Wave Propagation, Russian Academy of Sciences, Troitsk, Moscow oblast, Russia |