https://www.rbc.ru/newspaper/2018/12/14/5c079a1f9a79477ba84e3605
https://www.ft.com/content/b5dc9c38-fd56-11e8-aebf-99e208d3e521
https://www.kommersant.ru/doc/3829091
https://www.kommersant.ru/doc/3828931
https://www.vedomosti.ru/business/articles/2018/12/12/789170-rosneft
Study this picture.
https://nationalinterest.org/blog/buzz/does-russia-have-weapon-can-stop-swarm-strikes-38517
https://www.gazeta.ru/army/2018/12/12/12092173.shtml
https://www.gazeta.ru/army/2018/12/12/12092875.shtml
http://www.rosbalt.ru/world/2018/12/12/1752442.html
https://www.kommersant.ru/doc/3827707