00481naa#a2200169#i#450# EN\\bibl\3448 20241014233504.1 1995-0411 20140901b2014####ek#y0engy0150####ca RUS RU QR-code of Hermitage: statistics, visitors, facts Journal article CHERKIZOVO Russian State University of Tourism and Service 2014 8 с. Journal article local Guk Darya naukaru.ru