00504naa#a2200169#i#450# EN\\bibl\1421 20250127202458.1 1999-5644 20140131b2014####ek#y0engy0150####ca RUS RU Strategic Lines for Russian Education Service Market Development Journal article CHERKIZOVO Russian State University of Tourism and Service 2014 6 с. Journal article local Stepanova Svetlana naukaru.ru