- Libro electrónicoRussian Cyber ActivityFederal Bureau of Investigation
- Libro electrónicoRussian Cyber Activity – The Grizzly Steppe ReportU.S. Department of Homeland Security
- Libro electrónicoThe Grizzly Steppe Report (Unmasking the Russian Cyber Activity)U.S. Department of Homeland Security
- Libro electrónicoFederal Preparedness Circular 65U.S. Department of Homeland Security
- Libro electrónicoFederal Preparedness Circular 65U.S. Department of Homeland Security