00637naa#a2200181#i#450# EN\INFRA-M\bibl\38963 20240704185027.4 2500-0527 20200729b2020####ek#y0engy0150####ca RU Determination of a promising assortment of hotel services in conditions of uncertainty and risk Journal article Moscow INFRA-M Academic Publishing LLC. 2020 5 с. Journal article local Экономика. Экономические науки. 33 Matushevskaya Elena Anatolyevna Poddubnaya Elena Sergeevna zh-szf.ru