https://www.radiosvoboda.org/a/rosiya-ukrayina-kontsentratsiya-viysk-chy-pohroz/31540640.html
https://www.rosbalt.ru/world/2021/11/02/1929117.html
https://apostrophe.ua/article/politics/2021-11-01/bayraktar-nad-donbassom-chem-otvetit-moskva/42627
https://www.politico.com/news/2021/11/01/satellite-russia-ukraine-military-518337
https://www.svoboda.org/a/crisisniy-argument-pochemu-putin-puskaet-gas-v-evropu/31539883.html
https://www.nytimes.com/2021/10/31/world/europe/biden-putin-russia-united-states.html