00549naa#a2200157#i#450# EN\\bibl\81761 20260418052207.6 2221-3260 20240331b2024####ek#y0engy0150####ca RU Toolkit for improving the quality of tourism and recreational services in the context of the development of the digital economy Journal article Yaroslavl Yaroslavl State Technical University 2024 12 с. Journal article local Volynec Roman Aleksandrovich chemintech.ru