00707naa#a2200193#i#450# EN\INFRA-M\bibl\17421 20240630110138.7 2306-1731 20170718b2017####ek#y0engy0150####ca RUS RU Professional Retraining of Deputy Directors of Schools on Educational Work in the Information Educational Environment of the Academy of Social Management Journal article Moscow INFRA-M Academic Publishing LLC. 2017 5 с. Journal article local Статистика. Демография. Социология. 31 RUS Nechaev Mikhail Petrovich Rytova I. V. zh-szf.ru