00587naa#a2200181#i#450# EN\\bibl\16051 20240518090332.6 1993-7768 20170620b2017####ek#y0engy0150####ca RU Scientific Journal article CHERKIZOVO Russian State University of Tourism and Service 2017 1 с. Journal article local Туристско-экскурсионное обслуживание. 71.37 grnti Fedulin Aleksandr Krivosheeva Tat'yana Mihaylovna rguts.editorum.ru