00512naa#a2200169#i#450# EN\\bibl\772 20250227031347.4 1993-7768 20131211b2013####ek#y0engy0150####ca RUS RU Problems and Prospects of Hotel Business Development in Russia Journal article CHERKIZOVO Russian State University of Tourism and Service 2013 6 с. Journal article local Zaitseva Nataliya Aleksandrovna zh-szf.ru