00527naa#a2200181#i#450# EN\\bibl\4142 /en/manage/index 20250127094416.1 1995-042X 20141202b2014####ek#y0engy0150####ca RUS RU Types of control systems in tourism Journal article CHERKIZOVO Russian State University of Tourism and Service 2014 12 с. Journal article local Tkhagapsov Akhmed fht.editorum.ru /en/manage/index