00476naa#a2200169#i#450# EN\RIOR\bibl\13472 20240428231044.7 2409-6024 20161102b2016####ek#y0engy0150####ca RUS RU Methods of assessing the quality of services: comparative analysis Journal article Moscow Publishing Center RIOR 2016 8 с. Journal article local Vatolkina N riorpub.com