https://www.bbc.com/russian/features-59552095
https://hvylya.net/analytics/243252-virtualnyy-sammit-putina-baydena-analiz-osnovnyh-itogov
https://www.levada.ru/2021/12/10/dekabr-1991-go-kak-soyuz-stal-rushimym/
https://carnegie.ru/commentary/85966
https://www.kommersant.ru/doc/5119451
https://www.ng.ru/politics/2021-12-09/3_8323_opposition.html