00566naa#a2200193#i#450# EN\\bibl\11538 /en/manage/index 20241112165450.2 1995-042X 20160516b2016####ek#y0engy0150####ca RUS RU Development of youth tourism in Russia Journal article CHERKIZOVO Russian State University of Tourism and Service 2016 12 с. Journal article local Konovalova Elena Kosareva Natalya test.editorum.ru /en/manage/index