For citations:

Khomenkо Ya.V., Efimenko A.V. Sustainability of Oil and Gas Companies: Interpretation and Assessment from the Perspective of Systemic Economic Theory. Economics of Contemporary Russia. 2023;(3):108-128. (In Russ.) https://doi.org/10.33293/1609-1442-2023-3(102)-108-128. EDN: NZBEST