https://echo.msk.ru/blog/serpompo2018/2343267-echo/
https://openmedia.io/exclusive/chto-ne-tak-s-oficialnoj-rossijskoj-statistikoj/
http://www.rosbalt.ru/russia/2018/12/28/1755835.html
https://newtimes.ru/articles/detail/175384
https://www.kommersant.ru/doc/3844032
https://www.kommersant.ru/doc/3844011
Russia's economy will hit some speed bumps in 2019 and inflation will rise, a Reuters monthly poll showed on Thursday, due to risks of new sanctions, a weaker rouble and a planned tax increase.
https://www.inopressa.ru/article/27Dec2018/diepresse/economy.html
http://www.rosbalt.ru/blogs/2018/12/27/1755723.html