https://jamestown.org/program/is-crimea-now-costing-russia-more-than-it-is-worth/
https://www.radiosvoboda.org/a/krym-peretyn-adminkordonu/30987474.html
https://www.radiosvoboda.org/a/news-kordon-rosiya-zagybel-tsyvilnogo/30988004.html
https://theins.ru/opinions/inozemtsev/237336
https://jamestown.org/program/covid-19-and-russias-looming-debt-cliff/
https://www.finanz.ru/novosti/aktsii/rossiyskaya-ekonomika-uskorila-padenie-v-oktyabre-1029829416