http://www.kasparov.ru/material.php?id=5A46597C8AD7A
https://www.gazeta.ru/social/2017/12/25/11528840.shtml
After the deal with OPEC, Russia’s energy minister is now as closely watched as his Saudi counterpart
https://www.bloomberg.com/news/articles/2017-12-20/putin-s-mr-opec-becomes-an-oil-market-player
https://www.inopressa.ru/article/20Dec2017/bloomberg/novak.html
https://www.radiosvoboda.org/a/28911872.html
https://day.kyiv.ua/ru/blog/politika/olimpiada-bez-rossii-i-rossiya-bez-olimpiady
https://newtimes.ru/articles/detail/133110
https://newtimes.ru/articles/detail/133000
https://day.kyiv.ua/ru/blog/politika/kazus-rodchenkova