https://www.rbc.ru/newspaper/2021/12/29/61caf38f9a794794320dfb61
https://www.kommersant.ru/doc/5143341
https://www.rbc.ru/newspaper/2021/12/24/61c34e3f9a79470ec7ba9221
https://www.rosbalt.ru/moscow/2021/12/23/1937064.html
https://novayagazeta.ru/articles/2021/12/16/s-i-m-na-severnoi-trube
https://www.rbc.ru/newspaper/2021/12/15/61b73f979a794745391b5ac7
https://www.ng.ru/dipkurer/2021-12-12/9_8324_negotiation.html