TY JOUR TI SibNet — Siberian Global Navigation Satellite System Network: Current state KW ionosphere KW GNSS KW GPS KW GLONASS KW Beidou KW total electron content KW scintillations KW Javad KW NovAtel JO Solar-Terrestrial Physics AU Yasyukevich, Y.V. AU Vesnin, A.M. AU Perevalova, N.P. PY 2018 IS 4 PB INFRA-M Academic Publishing LLC.