https://www.ft.com/content/020de965-429e-4fb9-9eed-f7e4370514b3
https://jamestown.org/program/russias-cossacks-strategic-asset-or-financial-liability/
https://novayagazeta.ru/articles/2021/10/06/zakazchik-izvesten-emu-prosto-vydali-indulgentsiiu
https://jamestown.org/program/clashes-intensify-between-moscow-and-circassians-on-key-issues/
https://www.rbc.ru/newspaper/2021/10/04/6157139c9a79478b74d9a463
https://www.kp.ru/daily/28335.5/4480309/