00603naa#a2200181#i#450# EN\\bibl\16446 20241204151306.3 2308-4936 20190321b2019####ek#y0engy0150####ca RU The competitiveness of economic systems Journal article Tula LLC Information and publishing center Innovations and investments 2019 17 с. Journal article local Экономика. Экономические науки. 33 Sayfidinov Boris Semenovich Sazhina Viktoriya Olegovna naukaru.ru