00649naa#a2200217#i#450# EN\INFRA-M\bibl\6419 /en/manage/index 20250424012516.4 2306-174X 20150925b2015####ek#y0engy0150####ca RUS RU Comparative characteristics of heart rate variability parameters of Yugra pupils Journal article Moscow INFRA-M Academic Publishing LLC. 2015 9 с. Journal article local Khimikova O. Elman Kseniya Burykin Yu. Provorova O. test.editorum.ru /en/manage/index