http://expert.ru/2017/12/20/napugali-ezha-goloj-zadnitsej/
http://www.ng.ru/economics/2017-12-20/4_7140_rubl.html
https://www.inopressa.ru/article/20Dec2017/ft/rosneft.html
The U.S. military is making sure it's prepared to face threats in Europe.
http://www.newsweek.com/counter-russia-threat-us-military-spend-200-million-europe-airbases-751907
https://www.rbc.ru/newspaper/2017/12/19/5a37b01e9a79473c543a8e05
https://www.gazeta.ru/business/2017/12/18/11494772.shtml
https://www.rbc.ru/newspaper/2017/12/19/5a37d6389a794763e21ebdc1
https://www.rbc.ru/newspaper/2017/12/19/5a37b58e9a7947420a4f9a73
https://www.kommersant.ru/doc/3501415