%0 Journal Article %T Space weather: risk factors for Global Navigation Satellite Systems %A Demyanov, V.V. %A Yasyukevich, Y.V. %K space weather, GNSS, GPS, GLONASS, solar flares, magnetic storms, scintillations, PPP, RTK %J Solnechno-Zemnaya Fizika %D 2021 %N 7 %P 22 %I INFRA-M Academic Publishing LLC.