https://biz.liga.net/ekonomika/all/opinion/putin-poteryal-ukrainu-vot-i-besitsya
https://www.radiosvoboda.org/a/29906426.html
https://www.gazeta.ru/business/2019/04/27/12325969.shtml
https://espreso.tv/article/2019/04/26/vitaliy_portnykov_kreml_gotuyetsya_do_ataky
https://www.gazeta.ru/business/2019/04/26/12323275.shtml
https://www.gazeta.ru/business/2019/04/26/12324163.shtml
http://expert.ru/2019/04/26/gaz/
https://www.svoboda.org/a/29905173.html
https://carnegie.ru/commentary/78988