https://www.radiosvoboda.org/a/donbass-realii/29135977.html
https://focus.ua/country/394408/
https://www.radiosvoboda.org/a/29124434.html
http://carnegie.ru/commentary/75814
https://www.radiosvoboda.org/a/donbass-realii/29102541.html
http://www.ng.ru/dipkurer/2018-03-12/11_7187_donbass.html