https://novayagazeta.ru/articles/2021/10/25/protektsionizm-ubivaet
http://region.expert/republic/
https://www.svoboda.org/a/putin-priznal-rossiya-strana-bednosti/31506698.html
https://lansinginstitute.org/2021/10/12/russian-intelligence-focus-in-bulgaria/
https://www.rosbalt.ru/piter/2021/10/05/1924464.html
https://www.kp.ru/daily/28335.5/4480309/