https://www.wsj.com/articles/russia-rebuffs-trumps-arms-control-proposal-11601557462
https://nvo.ng.ru/realty/2020-10-01/3_1111_efficiency.html
https://www.radiosvoboda.org/a/steven-pifer-krym-donbas/30866848.html
https://www.radiosvoboda.org/a/30864206.html
https://www.kommersant.ru/doc/4512418
https://www.kommersant.ru/doc/4511980
https://www.radiosvoboda.org/a/news-zaiavy-fokina-op/30865707.html
https://lb.ua/society/2020/09/29/466923_ni_obitsyanok_ni_probachen.html