https://www.nytimes.com/2021/12/05/world/europe/putin-russia-ukraine-troops.html
https://www.rosbalt.ru/russia/2021/12/01/1933466.html
https://www.svoboda.org/a/shantazh-evropy-i-zakat-neftyanoy-rossii/31539301.html
https://www.rosbalt.ru/blogs/2021/11/30/1933460.html
https://carnegie.ru/commentary/85872
https://glavcom.ua/world/observe/eksporteri-haosu-analiz-rosiyskogo-mayn-kampfu-802667.html
https://www.bbc.com/russian/features-59314271