- peoplepill.com i/sergey-malyutin-2/
- prabook.com web/sergey.malyutin/739251
- rarehistoricalphotos.com vladimir-lenin-last-…
- mkram.ru en/2017/10/03/malyutin-sergey-…
- vk.com wall-74807131_72919?lang=en
- biography.com political-figures/vladimir-lenin
- investopedia.com terms/v/vladimir-lenin.asp
- rationalwiki.org wiki/Vladimir_Lenin