http://www.politico.eu/article/jean-claude-juncker-trip-to-russia-vladimir-putin-raises-concerns/
http://www.rbc.ru/newspaper/2016/05/30/574ac45e9a7947390810f478
http://www.ng.ru/world/2016-05-30/1_putin.html
http://ru.krymr.com/content/article/27749257.html
http://ru.krymr.com/content/article/27749027.html