@article{Григорьев2022appearance,
author={Григорьев, В.М. and Ермакова, Л.В. and Хлыстова, А.И.},
title={Appearance of active regions at the end of solar cycle 24 and at the beginning of cycle 25},
journal={Solar-Terrestrial Physics},
publisher={Институт солнечно-земной физики СО РАН},
year={2022},
pages={28-35},
volume={8},
issue={4},
}