%0 Journal Article %T Photoperiodic chronotype stability in students of Khanty-Mansi Autonomous Area – Yugra and Vladikavkaz %A Ragozin, O.. %A Schalamova, E.. %A Datieva, F.. %A Pogonysheva, I.. %K %J Bulletin of Nizhnevartovsk State University %D 2022 %N %P 7 %I Nizhnevartovsk State University