https://jamestown.org/program/russias-cossacks-strategic-asset-or-financial-liability/
https://www.depo.ua/ukr/svit/putin-ogolosiv-novu-gibridnu-viynu-shcho-zminilosya-202110111377909
https://www.svoboda.org/a/kak-krasnaya-armiya-vzryvala-kiev/31467844.html
https://analytics.hvylya.net/237377-istoricheskie-oshibki-vladimira-putina