https://inforesist.org/razgovor-byil-ochen-zhestkiy-upyirya-slomali/
https://site.ua/kirill.sazonov/3902-vozvraschenie-nadejdy-chto-zaprosil-putin/
http://carnegie.ru/commentary/2016/05/26/ru-63674/izix
http://www.kasparov.ru/material.php?id=57472CC883872
http://expert.ru/2016/05/26/sovet-ekonomicheskomu-sovetu/
http://www.ng.ru/economics/2016-05-26/1_crisis.html
http://expert.ru/2016/05/26/yakov-mirkin-eta-vstrecha-mozhet-vojti-v-uchebniki/
Moscow's current economic problems recall another crisis in the country's history
https://www.stratfor.com/sample/geopolitical-diary/russian-economic-revolution-never-was
http://www.bloomberg.com/view/articles/2016-05-25/putin-is-the-loser-in-prisoner-swap-with-ukraine