https://ru.krymr.com/a/28851944.html
https://www.kommersant.ru/doc/3467341
http://www.kasparov.ru/material.php?id=5A09E99CE79C1
http://www.ng.ru/armies/2017-11-13/2_7113_usa.html
https://ru.krymr.com/a/28843987.html
https://ru.krymr.com/a/28842610.html
https://ru.krymr.com/a/28842938.html
https://ru.krymr.com/a/28844186.html
Testimony presented before the House Foreign Affairs Committee, Subcommittee on Terrorism, Nonproliferation, and Trade and Subcommittee on Europe, Eurasia, and Emerging Threats on November 7, 2017.
https://www.rand.org/pubs/testimonies/CT483.html
https://ru.krymr.com/a/28841682.html