@article{Zotov2019influence,
author={Zotov, O.D. and Klain, B.I. and Kurazhkovskaya, N.A.},
title={Influence of the β solar wind parameter on statistical characteristics of the Ap index in the solar activity cycle},
journal={Solar-Terrestrial Physics},
publisher={INFRA-M Academic Publishing LLC.},
year={2019},
pages={46-52},
volume={5},
issue={4},
}