http://www.kasparov.ru/material.php?id=614AC17983B54§ion_id=43452FA6D4743
https://www.nytimes.com/2021/09/19/opinion/putin-russia-election.html
https://novayagazeta.ru/articles/2021/09/18/pereproshitaia-rossiia
https://www.rosbalt.ru/blogs/2021/09/13/1921039.html
https://jamestown.org/program/the-russian-elections-and-hidden-regionalist-politics/
https://www.levada.ru/2021/09/10/kakoj-dolzhna-byt-rossiya-v-predstavlenii-rossiyan/
https://www.kommersant.ru/doc/4978146
https://theins.ru/opinions/matizen/244867