http://www.kasparov.ru/material.php?id=5D03A3B8D922D
http://www.rosbalt.ru/russia/2019/06/14/1786732.html
The two Nato allies are on collision course over Ankara's purchase of a Russian air defence system.
https://www.novayagazeta.ru/articles/2019/06/13/80876-byl-shans-unichtozhit-zakazchikov
https://republic.ru/posts/93938
https://www.radiosvoboda.org/a/29998157.html
https://www.radiosvoboda.org/a/29996162.html
https://www.svoboda.org/a/29997663.html
https://www.radiosvoboda.org/a/donbass-realii/29998072.html