https://ru.krymr.com/a/28938205.html
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.kommersant.ru/doc/3501065
https://www.kommersant.ru/doc/3501315
https://www.kommersant.ru/doc/3500722
https://www.kommersant.ru/doc/3494879
http://www.dsnews.ua/world/ya-ustal-mne-by-uyti-zachem-kadyrov-poprosilsya-na-pokoy-27112017170000
https://www.svoboda.org/a/28874801.html
https://lb.ua/world/2017/11/16/382083_operatsiya_evakuatsiya_zachem_ramzan.html