https://carnegie.ru/commentary/86502
http://region.expert/inside-out/
https://www.bbc.com/russian/features-60289770
https://fakeoff.org/history/neudobnaya-pravda-o-moskovskikh-samozvantsakh-prozvannykh-tsaryami
https://www.rosbalt.ru/blogs/2022/01/22/1940381.html
https://theins.ru/obshestvo/247819
https://theins.ru/opinions/sergei-erofeev/247593
http://region.expert/defederalization/
https://www.ng.ru/politics/2021-12-24/03_8335_polit2.html