https://ru.krymr.com/a/vitaliy-portnikov-krym-diktuyet-pravila/31630895.html
https://hvylya.net/analytics/244375-ultimatum-putina-i-rossiysko-ukrainskaya-voyna-2022
https://www.bbc.com/russian/news-59769752
https://novayagazeta.ru/articles/2021/12/24/raspad-i-potom
https://www.rbc.ru/newspaper/2021/12/24/61c34e3f9a79470ec7ba9221
https://edition.cnn.com/2021/12/19/politics/joe-biden-russia-ukraine-obama-2014/index.html
https://www.bbc.com/russian/features-59676617