https://republic.ru/posts/86014
https://www.novayagazeta.ru/articles/2017/08/26/73609-300-serebrennikovyh
https://ru.krymr.com/a/28698241.html
https://www.gazeta.ru/politics/2017/08/26_a_10859906.shtml
https://www.novayagazeta.ru/articles/2017/08/26/73603-vizantiytsy-i-vyrypaev
http://www.dsnews.ua/world/putin-4-0-kak-kreml-budet-delat-vybory-23082017220000
http://www.kasparov.ru/material.php?id=59A11CB40CE34
Even as political and diplomatic relations sour, several important joint ventures continue.