https://www.kommersant.ru/doc/3835050
https://www.inopressa.ru/article/19Dec2018/nytimes/hack.html
https://www.inopressa.ru/article/19Dec2018/spiegel/anb.html
http://www.kasparov.ru/material.php?id=5C1A958AD45B4
http://www.kasparov.ru/material.php?id=5C19F1854F061
http://www.kasparov.ru/material.php?id=5C19E9BD7BA42
https://republic.ru/posts/92728
http://www.ng.ru/politics/2018-12-19/3_7466_er.html
https://www.gazeta.ru/social/2018/12/19/12100447.shtml
MOSCOW’S MAXIMUM security Lefortovo jail, where the KGB held its most important prisoners, has seen its share of revolutionaries, commissars, dissidents, ministers, oligarchs, governors and generals. Alexander Shestun is different.
https://www.economist.com/christmas-specials/2018/12/18/the-inner-workings-of-vladimir-putins-state