@article{2021variability,
author={, .. and , .. and , .. and , .. and , ..},
title={Variability of ionospheric TEC at low latitude station,Hyderabad during medium solar activity},
journal={Russian Journal of Earth Sciences},
publisher={Геофизический центр Российской Академии Наук},
year={2021},
pages={-},
volume={21},
issue={2},
}