https://analytics.hvylya.net/238090-itogi-vyborov-v-rf-pochemu-ne-stoit-ozhidat-massovyh-protestov
https://www.svoboda.org/a/31467728.html
https://www.nytimes.com/2021/09/19/opinion/putin-russia-election.html
https://novayagazeta.ru/articles/2021/09/18/pereproshitaia-rossiia
https://carnegie.ru/commentary/85343