00603naa#a2200193#i#450# EN\\bibl\41931 20240507202127.2 2307-1400 20210120b2021####ek#y0engy0150####ca RU The essence of the Russian shadow economy in modern conditions Journal article Saint-Petersburg Strategy of the Future 2021 9 с. Journal article local Экономика. Экономические науки. 33 Minina A. S. Smirnova Olga A. Shamray A. V. futurepubl.ru