https://novayagazeta.ru/articles/2021/10/07/gazprom-idet-na-shantazh
https://www.rbc.ru/newspaper/2021/10/04/6157139c9a79478b74d9a463
https://analytics.hvylya.net/238090-itogi-vyborov-v-rf-pochemu-ne-stoit-ozhidat-massovyh-protestov
https://www.nytimes.com/2021/09/19/opinion/putin-russia-election.html