http://www.wsj.com/articles/pleading-with-putin-on-syria-1473289920
http://www.wsj.com/articles/u-s-officials-warn-russia-over-alleged-hacks-1473285092
http://ru.krymr.com/a/27973774.html
http://www.bbc.com/russian/features-37235327
http://inosmi.ru/politic/20160907/237766593.html