1. Ahn, Seong Kyu. “Cyber Cancer - Can We Prepare for APT (Advanced Persistent Threat).” Column. Seoul: Asan Institute, August 5, 2015.
2. Bae, Dal Hyung. “North Korea’s Cyber Threat and Options for South Korea’s Policy Improvement and Capability Enhancement.” Seoul, 2011.
3. CSIS. “Missiles of North Korea.” Missile Defense Project. Washington, DC: Center for Strategic & International Studies, June 14, 2018. https://missilethreat.csis.org/country/dprk/.
4. Ernst, Maximilian, and Eliana Kim. “Economic Development Under Kim Jong-Un: The Added Value of Traffic Data and Established Indicators in the Study of North Korea’s Economy.” North Korean Review 16, no. 2 (2020): 26–48.
5. Ernst, Maximilian, and Sangho Lee. “Countering Cyber Asymmetry on the Korean Peninsula: South Korea’s Defense Against Cyber Attacks from Authoritarian States.” Journal for Intelligence, Propaganda and Security Studies 15, no. 1 (2021): 165–79.