https://www.dw.com/ru/kommentarij-pochemu-ubijstvo-litvinenko-paralizovalo-zapad/a-59904542
https://www.ng.ru/economics/2021-11-23/1_8308_conflict.html
https://www.svoboda.org/a/diplomatiya-obid-putina/31569084.html
https://www.bbc.com/russian/news-59305283