https://www.svoboda.org/a/29561962.html
http://www.ng.ru/cis/2018-11-06/6_7346_ukraine.html
https://www.ostro.org/lugansk/economics/articles/557983/
https://www.ostro.org/donetsk/politics/articles/557973/
https://www.radiosvoboda.org/a/29585475.html
https://day.kyiv.ua/ru/blog/politika/tak-nazyvaemye-kuratory
https://ru.krymr.com/a/merkel-putin-drujba-vokru-gazovoy-trubi/29580946.html