https://lansinginstitute.org/2022/01/13/damage-to-svalsat-cable-proves-russia-further-upping-stakes/
https://foreignpolicy.com/2021/12/13/biden-putin-ukraine-deter-russia-or-accept-defeat/
https://www.ng.ru/dipkurer/2021-12-12/9_8324_negotiation.html
https://www.kommersant.ru/doc/5127947