Ruzhanskaya Л. С. ., Fonova Н. Г. ., and Yakimova Е. А. . “Reaction of Small and Medium-Sized Enterprises to the Corona Crisis: the Impact of Regional Authorities”. Economy of Regions, vol. 18, no. 3, Sept. 2022, pp. 653-72, doi:10.17059/ekon.reg.2022-3-3.