1. Analysis of Shipping Traffic in the NSR Waters in 2020. August 28, 2021. Retrieved on November 12, 2021 from https://arctic-lio.com/analysys-of-shipping-traffic-in-the-nsr-waters-in-2020/
2. Menshikova, M. The Arctic during World War II: three polar stations bring victory closer. Arctic.ru. Retrieved on November 1, 2021 from https://arctic.ru/infographics/20190621/864748.html
3. The U.S. Department of Defense (2021). DOD announces center to collaborate on, advance shared interests in Arctic Region. June 09, 2021. Retrieved on October 12, 2021 from https://www.defense.gov/News/News-Stories/Article/Article/2652190/dod-announces-center-to-collaborate-on-advance-shared-interests-in-arctic-region/
4. Wingrove, M. (2011). Arctic shipping will be safer with five new Navtex areas. Riviera News Content Hub, April 18 2011. Retrieved on November 15, 2021 from https://www.rivieramm.com/news-content-hub/arctic-shipping-will-be-safer-with-five-new-navtex-areas-44068
5. Nilsen, T. (2019b). Russia with double ballistic missiles test from submarines. The Barents Observer, August 24, 2019. Retrieved on October 23, 2021 from https://thebarentsobserver.com/en/security/2019/08/russia-double-ballistic-missiles-test-barents-sea