https://www.kommersant.ru/doc/5028300
https://www.svoboda.org/a/posle-hruscheva-i-gorbacheva-zhdatj-li-rossii-reformatora/31500658.html
https://jamestown.org/program/clashes-intensify-between-moscow-and-circassians-on-key-issues/
https://carnegie.ru/commentary/85351
https://analytics.hvylya.net/237377-istoricheskie-oshibki-vladimira-putina
http://www.kasparov.ru/material.php?id=613783D5D6376