https://jamestown.org/program/clashes-intensify-between-moscow-and-circassians-on-key-issues/
https://www.rosbalt.ru/blogs/2021/10/05/1924631.html
https://www.rosbalt.ru/world/2021/09/22/1922421.html
https://www.ng.ru/dipkurer/2021-09-19/9_8255_russia.html
https://www.rbc.ru/newspaper/2021/09/17/614325119a7947933c9953a0
https://novayagazeta.ru/articles/2021/09/11/ukraintsam-nado-gotovitsia-k-prekrashcheniiu-tranzita