00571naa#a2200193#i#450# EN\\bibl\12160 20240502233001.4 1995-042X 20160921b2016####ek#y0engy0150####ca RUS RU A cluster of social tourism: issues of forming Journal article CHERKIZOVO Russian State University of Tourism and Service 2016 9 с. Journal article local Makarenko Zoya Zhilkova Yuliya Nasyrova Liliya service-rusjournal.editorum.ru