@article{Kholmogorov2019solving,
author={Kholmogorov, A.A. and Ivanov, V.B. and Gorbachev, O.A.},
title={Solving a navigation problem with the total electron content model GEMTEC},
journal={Solnechno-Zemnaya Fizika},
publisher={INFRA-M Academic Publishing LLC.},
year={2019},
pages={107-111},
volume={5},
issue={1},
}