Gainanov Д. А. ., Gataullin Р. Ф. ., and Safiullin Р. Г. . “Typology of Russian Regional Systems in Connection With the Decarbonisation of the Economy”. Economy of Regions, vol. 19, no. 1, Mar. 2023, pp. 29-44, doi:10.17059/ekon.reg.2023-1-3.