00513naa#a2200169#i#450# EN\\bibl\13614 20260730211158.4 1999-8775 20160930b2016####ek#y0engy0150####ca RUS RU SYSTEM TIES INVESTIGATION IN MATTERS OF INTERACTION BETWEEN SOCIAL AND ECONOMIC SYSTEMS AND NA Journal article Bryansk Bryansk State Technical University 2016 3 с. Journal article local U Tszyayuy naukaru.ru