http://www.kasparov.ru/material.php?id=5E021FD1DF142
https://www.inopressa.ru/article/24Dec2019/nzz/bykov.html
While sanctions will depress Russia's economic performance, they are unlikely to go to an extreme that causes its economic collapse.
https://www.radiosvoboda.org/a/news-us-taylor-russia-sanctions/30340526.html