@article{Pogonysheva2021annual,
author={Pogonysheva, I.. and Lunyak, I.. and Pogonyshev, D..},
title={Annual dynamics of dispersion mapping indicators of electrocardiogram tracing in students with different chronotypes},
journal={Bulletin of Nizhnevartovsk State University},
publisher={Nizhnevartovsk State University},
year={2021},
pages={88-92},
volume={},
issue={2},
}