https://www.gazeta.ru/army/2017/03/30/10603625.shtml
http://www.kommersant.ru/doc/3255326
http://nv.ua/ukr/opinion/blanc_steve/rosija-gotuje-vtorgnennja-v-ukrajinu-898027.html
http://r-studies.org/cms/index.php?action=news/view_details&news_id=38935&lang=ukr
http://r-studies.org/cms/index.php?action=news/view_details&news_id=38937&lang=ukr
http://nationalinterest.org/blog/the-buzz/russia-has-one-super-weapon-america-cant-seem-match-19941
https://www.novayagazeta.ru/articles/2017/03/29/71947-eshelony-na-zapad
https://www.gazeta.ru/army/2017/03/29/10600853.shtml
https://www.gazeta.ru/army/2017/03/28/10599095.shtml