1. API. (2021). History of Northern Alaska Petroleum Development. Retrieved from: https://www.api.org/oil-and-natural-gas/wells-to-consumer/exploration-and-production/alaska/history-alaska/history-of-alaska-petroleum
2. Arctic Russia. (2021). Northern Sea Route. Retrieved from: https://arctic-russia.ru/northsearoute/
3. Boylan, B. M. (2021). Increased Maritime Traffic in the Arctic: Implications for governance of Arctic Sea Routes. Marine Policy, 131, 104566.
4. Bryzgalov, R. A. (2011). Northern Sea Route: State and development prospects. MIR (Modernization. Innovations. Development), 5, 103–106. Retrieved from: https://cyberleninka.ru/article/n/severnyy-morskoy-put-sostoyanie-i-perspektivy-razvitiya/viewer. (in Russian).
5. Commersant. (2021). Russian Foreign Ministry Explained the Reasons for the Restoration of Military Infrastructure in the Arctic. Retrieved from: https://www.kommersant.ru/doc/4837700