00455naa#a2200169#i#450# EN\INFRA-M\bibl\786 20251220095349.6 2305-7807 20120425b2012####ek#y0engy0150####ca RUS RU A control system of weak students Journal article Moscow INFRA-M Academic Publishing LLC. 2012 3 с. Journal article local Buymov Arkadiy zh-szf.ru