http://www.currenttime.tv/a/27974422.html
https://lenta.ru/articles/2016/09/08/demography/
http://www.ng.ru/economics/2016-09-08/1_arctic.html
https://focus.ua/country/356682/
http://www.svoboda.org/a/27972022.html
http://ukrainian.voanews.com/a/novi-sanktsii-proty-rosiyi/3497486.html
https://www.stratfor.com/analysis/putins-iron-grip-forged-fires-terrorism
https://www.ft.com/content/cdd65dc0-7440-11e6-bf48-b372cdb1043a