00525naa#a2200181#i#450# EN\\bibl\4747 20240517095644.5 1995-042X 20141210b2014####ek#y0engy0150####ca RUS RU Innovative technologies in hotel businesses Journal article CHERKIZOVO Russian State University of Tourism and Service 2014 0 с. Journal article local Dukhovnaya Liliya Kholodtsova Irina rguts.editorum.ru