https://www.nytimes.com/2021/12/05/world/europe/putin-russia-ukraine-troops.html
https://www.bbc.com/russian/news-59527176
https://www.svoboda.org/a/shantazh-evropy-i-zakat-neftyanoy-rossii/31539301.html
https://www.kommersant.ru/doc/5100564
https://www.kommersant.ru/doc/5100324