https://hvylya.net/analytics/244375-ultimatum-putina-i-rossiysko-ukrainskaya-voyna-2022
https://www.rosbalt.ru/russia/2021/12/29/1937757.html
https://www.rbc.ru/newspaper/2021/12/27/61c4464f9a79475cbe2bf791
https://carnegie.ru/commentary/85998
https://novayagazeta.ru/articles/2021/12/15/taina-podlosti-na-ntv
http://www.kasparov.ru/material.php?id=61B49F42A54FD§ion_id=444F8A447242B
https://www.radiosvoboda.org/a/arestovych-putin-biden-viyna-donbas/31604580.html