00472naa#a2200169#i#450# EN\\bibl\887 20241203074808.2 1995-042X 20131225b2013####ek#y0engy0150####ca RUS RU HOTEL YIELD MANAGEMENT TECHNOLOGIES Journal article CHERKIZOVO Russian State University of Tourism and Service 2013 6 с. Journal article local Chkhikvadze Nelli zh-szf.ru