https://www.kommersant.ru/doc/5172697
https://theins.ru/opinions/sergei-erofeev/247593
http://region.expert/defederalization/
https://www.bbc.com/russian/features-59817247
https://www.bbc.com/russian/news-59815965
https://www.rbc.ru/newspaper/2021/12/29/619f93a29a79479fd98185b7
https://www.ng.ru/armies/2021-12-24/11_8335_army3.html
https://www.rbc.ru/newspaper/2021/12/24/61c42af29a79474d8a0adb28