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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://jamestown.org/program/the-russian-elections-and-hidden-regionalist-politics/
https://theins.ru/opinions/matizen/244867
https://novayagazeta.ru/articles/2021/09/09/po-doroge-v-shatdaun