https://www.kommersant.ru/doc/4965365
https://jamestown.org/program/biden-putin-summit-failed-to-reverse-downturn-in-bilateral-relations/
https://novayagazeta.ru/articles/2021/07/29/pobory-vmesto-nalogov
https://www.rosbalt.ru/blogs/2021/07/27/1913123.html
https://www.ng.ru/economics/2021-07-26/1_8208_economics1.html
https://www.ng.ru/economics/2021-07-25/1_8207_economics1.html