http://www.rferl.org/content/putin-erdogan-mirror-image-too-much-alike-to-compromise/27388004.html
http://izvestia.ru/news/597355
http://www.gazeta.ru/business/2015/11/26/7918295.shtml
http://www.newizv.ru/society/2015-11-09/230180-dolgovoj-shlagbaum.html
http://www.svoboda.org/content/article/27385792.html
http://foreignpolicy.com/2015/11/25/fight-club-erdogan-and-putin-square-off/
http://izvestia.ru/news/597152