00524naa#a2200169#i#450# EN\\bibl\7961 20241119045223.2 1995-042X 20151126b2015####ek#y0engy0150####ca RUS RU Theory and practice of business tourism in Irkutsk: regional development of destinations Journal article CHERKIZOVO Russian State University of Tourism and Service 2015 10 с. Journal article local Rzhepka Elina naukaru.ru