%0 Journal Article %T Ionospheric effects of two solar flares in the maximum of solar cycle 23 and in the minimum of solar cycle 24 %A Smirnov, V.M. %A Smirnova, E.V. %K ionosphere, solar flares, navigation satellite systems, radio translucence method, electron content %J Solnechno-Zemnaya Fizika %D 2019 %N 5 %P 6 %I INFRA-M Academic Publishing LLC.