@article{Yasyukevich2017estimating,
author={Yasyukevich, Y.V. and Mylnikova, A.A. and Ivanov, V.B.},
title={Estimating the absolute total electron content based on single-frequency satellite radio navigation GPS/GLONASS data},
journal={Solar-Terrestrial Physics},
publisher={INFRA-M Academic Publishing LLC.},
year={2017},
pages={128-137},
volume={3},
issue={1},
}