00557naa#a2200181#i#450# EN\\bibl\98583 20251210165842.3 2221-3260 20250331b2025####ek#y0engy0150####ca ENG RU Effects of regional integration on trade in agricultural products in ECOWAS Journal article Yaroslavl Yaroslavl State Technical University 2025 14 с. Journal article local N’Goran Koffi Célestin Titova Lyudmila Anatol'evna comincon.ru