https://tyzhden.ua/Society/223828
https://thebell.io/ubijstvo-glavy-dnr-aleksandra-zaharchenko-kakimi-budut-posledstviya/
http://www.ng.ru/cis/2018-04-12/1_7210_krum.html
http://intersectionproject.eu/ru/article/economy/saga-o-rosnefti
http://www.rbc.ru/newspaper/2017/06/16/59429d019a79476202fd9b73
https://www.nytimes.com/2017/06/09/world/europe/aleksei-navalny-russia-election-putin.html?_r=0