http://region.expert/defederalization/
https://www.rbc.ru/newspaper/2021/12/28/61c21e289a79479e8562641b
https://novayagazeta.ru/articles/2021/12/27/den-osvobozhdeniia
https://www.levada.ru/2021/12/24/nostalgiya-po-sssr-3/
https://novayagazeta.ru/articles/2021/12/24/raspad-i-potom
https://www.rosbalt.ru/moscow/2021/12/23/1937064.html
https://www.rbc.ru/newspaper/2021/12/22/61c1a9509a79476aa5e6b2cf