https://www.rosbalt.ru/blogs/2021/12/13/1935477.html
http://region.expert/belovezh/
https://www.ng.ru/dipkurer/2021-12-12/9_8324_negotiation.html
https://www.bbc.com/russian/features-59552095
https://www.radiosvoboda.org/a/arestovych-putin-biden-viyna-donbas/31604580.html