https://www.gazeta.ru/business/2019/01/10/12123571.shtml
https://www.gazeta.ru/business/2019/01/09/12122371.shtml
http://expert.ru/2019/01/10/neft_1/
Rising social, ethnic, economic and regional pressures indicate that Russia is heading toward fragmentation.
http://www.ng.ru/economics/2019-01-09/1_7477_gas.html
http://expert.ru/2019/01/9/sanktsii/
http://expert.ru/2019/01/9/zapadnyie-smi-severnyij-potok-2-teryaet-podderzhku-v-germanii/
https://www.gazeta.ru/business/2019/01/09/12122215.shtml