https://jamestown.org/program/clashes-intensify-between-moscow-and-circassians-on-key-issues/
http://www.kasparov.ru/material.php?id=61169B05C4361§ion_id=444F8A447242B
https://www.svoboda.org/a/31404294.html
https://www.rbc.ru/newspaper/2021/07/28/61000ff29a7947b9d5a98363