00544naa#a2200181#i#450# EN\\bibl\2177 /en/manage/index 20250404072437.5 1993-7768 20140603b2014####ek#y0engy0150####ca RUS RU Rusologia as a complex scientific study of Early Rus Journal article CHERKIZOVO Russian State University of Tourism and Service 2014 8 с. Journal article local Chudinov Valeriy test.editorum.ru /en/manage/index