@article{Spasennikov2023p.ya.,
author={Spasennikov, V.V.},
title={P.Ya. Schlaen  in Memories and Impressions (To the 100th Anniversary of His Birth)},
journal={Ergodesign},
publisher={Bryansk State Technical University},
year={2023},
pages={288-298},
volume={2023},
issue={3},
}