@article{Podlesnyi2019estimating,
author={Podlesnyi, A.V. and Naumenko, A.V. and Cedrik, M.V.},
title={Estimating antenna coupling factor for problem of topside ionosphere sounding from space with using chirp signals},
journal={Solar-Terrestrial Physics},
publisher={INFRA-M Academic Publishing LLC.},
year={2019},
pages={101-107},
volume={5},
issue={4},
}