@article{Yakovlev2021in,
author={Yakovlev, S.V. and Sokolova, N.V. and Nevskaya, S.S.},
title={In Memory of Alexei Mikhailovich Kushnir  (1958-2021)},
journal={Journal of Pedagogical Studies},
publisher={INFRA-M Academic Publishing LLC.},
year={2021},
pages={69-72},
volume={6},
issue={3},
}