00529naa#a2200181#i#450# EN\INFRA-M\bibl\5815 /en/manage/index 20250215165306.6 1998-1740 20150417b2015####ek#y0engy0150####ca RUS RU The Case-Study As a Method of Humanitarian Research Journal article Moscow INFRA-M Academic Publishing LLC. 2015 3 с. Journal article local Volkova Natalya test.editorum.ru /en/manage/index