00518naa#a2200169#i#450# EN\\bibl\4737 20241006141855.7 1995-042X 20141210b2014####ek#y0engy0150####ca RUS RU Business tourism and its implications on regional development: marketing aspects Journal article CHERKIZOVO Russian State University of Tourism and Service 2014 0 с. Journal article local Chkhikvadze Nelli zh-szf.ru