https://www.kommersant.ru/doc/5118413
https://hvylya.net/analytics/243107-rozmova-putina-baydena-golovni-visnovki-dlya-ukrajini
https://carnegie.ru/commentary/85947
http://region.expert/free-empire/
https://www.rbc.ru/newspaper/2021/12/06/61aa3c879a7947e608b37485
https://www.bbc.com/russian/news-59508791
https://www.kp.ru/daily/28364/4513112/