https://www.kommersant.ru/gallery/5030849
https://www.finanz.ru/novosti/aktsii/smertnost-v-rossii-ustanovila-rekord-s-razvala-sssr-1030853567
http://region.expert/landscape/
https://carnegie.ru/commentary/85479
https://jamestown.org/program/clashes-intensify-between-moscow-and-circassians-on-key-issues/