https://zn.ua/ukr/international/novi-pretenziji-putina-choho-shche-vin-khoche-vid-ukrajini.html
https://www.dw.com/ru/zarubezhnye-aktivy-sssr-chto-do-sih-por-ne-podelili-rf-i-ukraina/a-60118392
https://novayagazeta.ru/articles/2021/12/14/pokhishcheny-i-ubity-agentami-gosudarstva
https://foreignpolicy.com/2021/12/13/biden-putin-ukraine-deter-russia-or-accept-defeat/
http://region.expert/belovezh/