http://www.rosbalt.ru/world/2018/03/08/1686788.html
https://www.gazeta.ru/business/2018/03/08/11676229.shtml
https://www.radiosvoboda.org/a/29086894.html
https://www.radiosvoboda.org/a/29087098.html
https://focus.ua/opinions/392914/
https://ru.krymr.com/a/29084615.html
https://politeka.net/politeka-onlajn/610807-sergej-gajdaj-o-gazovoj-afere-i-zavisimosti-ot-rossii/