https://www.bbc.com/russian/news-59038588
https://theins.ru/opinions/vladimir-milov/245839
https://www.finanz.ru/novosti/aktsii/es-otvetil-net-na-gazovy-ultimatum-rossii-1030878578
https://jamestown.org/program/the-eu-russia-antagonism-stretches-from-ukraine-to-the-arctic/
https://carnegie.ru/commentary/85566