http://inosmi.ru/military/20160530/236702509.html
http://www.inopressa.ru/article/30May2016/sueddeutsche/sanctions_4.html
http://inosmi.ru/politic/20160527/236682902.html
http://inosmi.ru/politic/20160526/236669441.html
https://theconversation.com/could-nato-go-to-war-with-russia-and-what-would-happen-if-it-did-59694
http://inosmi.ru/politic/20160525/236651662.html
http://europe.newsweek.com/why-japan-looking-towards-putin-lately-462977
http://foreignpolicy.com/2016/05/24/us-putin-russia/