00627naa#a2200181#i#450# EN\\bibl\44541 20241104224147.1 2073-5537 20210617b2021####ek#y0engy0150####ca ENG RU COVID-19 economic response measures and entrepreneurial activities: a study of micro-enterprises in Nigeria Journal article Astrakhan Astrakhan State Technical University 2021 16 с. Journal article local Экономика. Экономические науки. 33 ENG Obi Chinazor Franca vestnik.astu.org