http://lenta.ru/articles/2015/05/14/guriev/
http://www.newizv.ru/economics/2015-05-14/219415-otpushenie-grehov.html
http://inosmi.ru/world/20150514/228025183.html
http://www.gazeta.ru/business/2015/05/13/6685433.shtml
http://www.svoboda.org/content/article/26999765.html
http://www.worldaffairsjournal.org/article/putin-principle-how-it-came-rule-russia
http://r-studies.org/cms/index.php?action=news/view_details&news_id=3906&lang=ukr