00653naa#a2200169#i#450# EN\\bibl\70612 20251211041824.4 2073-5537 20231004b2023####ek#y0engy0150####ca RU To the 70th anniversary of the scientist and teacher, doctor of economics, honorary professor of higher education of the Russian Federation N. G. Gadzhiev Journal article Astrakhan Astrakhan State Technical University 2023 1 с. Journal article local Научное сотрудничество. 001.83 Konovalenko Sergei Aleksandrovich vestnik.astu.org