00549naa#a2200181#i#450# EN\INFRA-M\bibl\3854 /en/manage/index 20241215155522.7 2306-1731 20140910b2014####ek#y0engy0150####ca RUS RU Skills Development and Retraining by Means of Distance Learning Technologies Journal article Moscow INFRA-M Academic Publishing LLC. 2014 2 с. Journal article local Labutin V. test.editorum.ru /en/manage/index