http://www.liga.net/opinion/320245_marazm-krepchaet-rf-kormit-donbass-legalno-ukraina-podpolno.htm
http://www.kommersant.ru/doc/3227908
https://www.inopressa.ru/article/27Feb2017/newsweek/arctic.html
http://www.ng.ru/economics/2017-02-27/1_6936_statistics.html
https://www.gazeta.ru/politics/2017/02/26_a_10544759.shtml
Moscow is trying to tap the region's massive oil and natural gas reserves and encourage commercial shipping through an Arctic shortcut between European and Asian ports.
http://europe.newsweek.com/why-russia-beating-us-race-control-arctic-560670?rm=eu
https://day.kyiv.ua/uk/blog/polityka/kurylska-bagatohodivka
http://www.bbc.com/ukrainian/news-39067878?SThisFB
https://focus.ua/country/366971/