https://www.levada.ru/2021/09/06/protestnye-nastoeniya/
https://www.dw.com/ru/vybory-v-gosdumu-2021-mozhno-li-verit-socoprosam-v-rossii/a-59026593
https://www.bbc.com/russian/news-58399319
https://www.kommersant.ru/doc/4966105
https://novayagazeta.ru/articles/2021/08/30/ot-edinoi-rossii-k-obshchei
https://www.nytimes.com/2021/08/30/world/europe/russian-opposition-leaders-exile.html