https://novayagazeta.ru/articles/2022/01/29/v-ozhidanii-glavnogo-otveta
https://www.rosbalt.ru/moscow/2022/01/18/1940041.html
https://lansinginstitute.org/2022/01/13/damage-to-svalsat-cable-proves-russia-further-upping-stakes/
https://www.rosbalt.ru/moscow/2021/12/23/1937064.html
https://24tv.ua/nagadali-pro-budapeshtskiy-memorandum-novini-rosiyi-i-ukrayini_n1822928