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http://www.kasparov.ru/material.php?id=617974D5B19FF
http://www.kasparov.ru/material.php?id=617938231B0A0§ion_id=43452FA6D4743
https://www.ng.ru/economics/2021-10-20/1_8282_income.html
http://region.expert/landscape/
https://jamestown.org/program/clashes-intensify-between-moscow-and-circassians-on-key-issues/