https://www.ng.ru/news/726937.html
https://www.rosbalt.ru/blogs/2021/12/07/1934564.html
https://www.ft.com/content/b403898a-0dfb-41b3-a8c6-a53866ff0859
https://www.ng.ru/economics/2021-12-06/1_8319_export.html
https://www.nytimes.com/2021/12/05/world/europe/putin-russia-ukraine-troops.html