https://www.kommersant.ru/doc/3619854
https://www.novayagazeta.ru/articles/2018/05/04/76363-za-chto-on-derzhitsya
https://newtimes.ru/articles/detail/161195
https://newtimes.ru/articles/detail/161211
https://www.vedomosti.ru/economics/articles/2018/05/04/768487-novii-nalog
http://www.ng.ru/economics/2018-05-04/100_minfin0405.html
Russian politics depends on a competition between different power networks. And hardline nationalists are winning at the expense of reformers.
https://theconversation.com/russia-how-western-condemnation-lets-putin-off-the-hook-94595
https://www.vedomosti.ru/economics/articles/2018/05/03/768481-vooruzheniya