https://www.kp.ru/daily/28335.5/4480309/
https://www.radiosvoboda.org/a/dopovid-oon-pro-prava-ludyny/31475103.html
https://jamestown.org/program/russias-military-boosts-electromagnetic-spectrum-capability/
http://www.kasparov.ru/material.php?id=614AC17983B54§ion_id=43452FA6D4743
https://www.nytimes.com/2021/09/19/opinion/putin-russia-election.html
https://novayagazeta.ru/articles/2021/09/18/pereproshitaia-rossiia
https://www.rosbalt.ru/world/2021/09/15/1921413.html