http://www.gazeta.ru/business/2015/12/17/7974389.shtml
http://www.gazeta.ru/business/2015/12/15/7970909.shtml
http://www.gazeta.ru/business/2015/12/16/7972685.shtml
http://www.nationalinterest.org/blog/the-buzz/dont-count-putins-russia-collapsing-14655
http://ru.krymr.com/content/article/27432120.html
http://uainfo.org/blognews/1450245422-cnn-rossiyskiy-sredniy-klass-ne-vinit-putina-v-krizise.html
http://ru.krymr.com/content/article/27431888.html