@article{Korsunskaja2019heuristic,
author={Korsunskaja, J.A.},
title={Heuristic model of solar X-ray spectrum according to satellite data for geophysical applications},
journal={Solar-Terrestrial Physics},
publisher={INFRA-M Academic Publishing LLC.},
year={2019},
pages={75-86},
volume={5},
issue={3},
}