https://apostrophe.ua/article/world/ex-ussr/2018-12-02/rossiya-idet-po-doroge-kotoroy-net/22183
https://www.gazeta.ru/politics/2018/12/02_a_12079831.shtml
https://www.vedomosti.ru/economics/articles/2018/11/30/788074-rossiya-predlozhila-g20
http://expert.ru/2018/11/30/s-400-v-obmen-na-f-35/
https://www.kommersant.ru/doc/3813691
https://www.kommersant.ru/doc/3811021
https://www.gazeta.ru/army/2018/11/25/12071473.shtml
The No. 3 oil producer shares a lot of interests with Saudi Arabia. But right now, with Rosneft investing in exploration and Putin eager to keep gas prices low, there’s little enthusiasm to cut.
https://www.barrons.com/articles/russia-oil-output-1542987852
https://www.inopressa.ru/article/23Nov2018/nzz/gazprom.html