U.S. sanctions have driven the price of oil and the ruble apart—leaving Russia with expensive crude and a cheaper currency, a combination that is helping its economy.
https://www.kommersant.ru/doc/3772353
https://www.kommersant.ru/doc/3771809
https://newtimes.ru/articles/detail/171261
https://www.gazeta.ru/business/2018/10/16/12022717.shtml
https://ru.krymr.com/a/sevastopol-i-krym-v-reitinge-zarplat-rossii/29543973.html
https://www.rbc.ru/newspaper/2018/10/15/5bbb30ae9a7947007ab6cad5
https://www.kommersant.ru/doc/3771167
http://expert.ru/expert/2018/42/mks-mozhet-stat-neobitaemoj/
https://www.kommersant.ru/doc/3766605