https://lenta.ru/articles/2019/12/21/peace/
https://www.bbc.com/russian/news-50875969
https://www.gazeta.ru/business/2019/12/21/12876782.shtml?updated
https://www.kommersant.ru/doc/4205007
https://www.kommersant.ru/doc/4204732
https://theins.ru/opinions/193588
https://www.bbc.com/russian/features-50857559
https://theins.ru/antifake/193549
https://www.thedailybeast.com/trump-administration-battles-new-sanctions-on-russia