Kryukov ВА, Tokarev АН. Creation of Conditions for the Development of Hard-to-Recover Oil Reserves: Regional Aspects. Econ Reg [Internet]. 2022 Sep. 30 [cited 2024 Apr. 20];18(3):755-69. Available from: https://economyofregions.org/ojs/index.php/er/article/view/325