http://www.kasparov.ru/material.php?id=5A46597C8AD7A
https://www.rbc.ru/newspaper/2017/12/27/5a40c2a69a7947146ef7a37a
https://www.rbc.ru/newspaper/2017/12/26/5a3b920b9a79477856403329
https://www.gazeta.ru/social/2017/12/25/11528840.shtml
https://ru.krymr.com/a/28931434.html
https://www.vedomosti.ru/politics/articles/2017/12/20/745989-pensiyu-zamorozili
https://www.gazeta.ru/business/2017/12/19/11500118.shtml
https://www.radiosvoboda.org/a/28911872.html