http://www.inopressa.ru/article/08Dec2015/wp/putin_obama_1.html
http://ria.ru/analytics/20151208/1338203405.html
http://warontherocks.com/2015/12/the-russian-in-turkish-public-consciousness/
http://www.dw.com/en/putins-mind-games-with-turkey/a-18898726
http://www.ft.com/intl/cms/s/2/77156ed2-9ab0-11e5-be4f-0abd1978acaa.html
http://www.wsj.com/articles/how-to-defeat-isis-nownot-ultimately-1449533196