TY JOUR TI Influence of geomagnetic disturbances on scintillations of GLONASS and GPS signals as observed on the Kola Peninsula KW ionosphere KW GLONASS KW GPS KW magnetic storm KW substorm KW aurora JO Solar-Terrestrial Physics AU Belahovskiy, V.B. AU Budnikov, P.A. AU Kalishin, A.S. AU Pilgaev, S.V. AU Roldugin, A.V. PY 2023 IS 9 PB Institute of Solar-Terrestrial Physics SB RAS