00478naa#a2200169#i#450# EN\INFRA-M\bibl\646 20240808184940.4 1998-0744 20131030b2013####ek#y0engy0150####ca RUS RU Organizing self-education among gifted schoolchildren Journal article Moscow INFRA-M Academic Publishing LLC. 2013 4 с. Journal article local Sergeeva Tatyana naukaru.ru