00545naa#a2200181#i#450# EN\\bibl\5892 20240426005033.5 1993-7768 20150615b2015####ek#y0engy0150####ca RUS RU Managing a sanatorium and resort enterprise in the market economy Journal article CHERKIZOVO Russian State University of Tourism and Service 2015 6 с. Journal article local Prokhorova Olga Krasnova Olga philosoph.editorum.ru