https://www.dw.com/ru/pytki-v-sizo-i-kolonijah-v-rossii-kak-sistema-otstaivaet-svoih/a-60577106
https://www.bbc.com/russian/features-59778079
https://www.nytimes.com/2021/11/25/us/politics/biden-putin-russia-ukraine.html
http://blogs.ft.com/beyond-brics/2016/11/24/could-trump-help-revive-russias-economy/