https://www.rbc.ru/newspaper/2021/12/29/61caf38f9a794794320dfb61
http://www.kasparov.ru/material.php?id=61CD9BB1688EB§ion_id=444F8A447242B
https://www.finanz.ru/novosti/birzhevyye-tovary/v-rossii-nachala-padat-dobycha-nefti-1031070986
https://www.bbc.com/russian/features-59817247
https://www.bbc.com/russian/news-59815965
https://www.rbc.ru/newspaper/2021/12/29/619f93a29a79479fd98185b7