00550naa#a2200181#i#450# EN\INFRA-M\bibl\15703 /en/manage/index 20250221132440.5 2500-0527 20170306b2017####ek#y0engy0150####ca RUS RU Social advertising for illiquid scope of persons or for core audience? Journal article Moscow INFRA-M Academic Publishing LLC. 2017 5 с. Journal article local Golenkova Zinaida fht.editorum.ru /en/manage/index