https://www.kommersant.ru/doc/3732761
https://www.kommersant.ru/doc/3732271
https://www.kommersant.ru/doc/3732219
https://www.svoboda.org/a/29471699.html
http://www.rosbalt.ru/blogs/2018/09/04/1729558.html
http://expert.ru/2018/09/4/govorit-o-roste-tsen-na-hleb-stalo-opasno/
https://www.kommersant.ru/doc/3731435
By intervening in Syria, annexing Crimea, and sustaining military presence in Eastern Ukraine, Russian President Vladimir Putin seems to have overextended himself. With an annual growth rate of just 1.5%, Russia is now expending 5.3% of its GDP on its military budget, while losing another 3-4% to legal, civilian, and other costs.
https://www.project-syndicate.org/commentary/cost-of-wars-for-russia-by-anders-aslund-2018-09
https://www.rbc.ru/newspaper/2018/09/03/5b87cd299a7947da99b885f0