อ้างอิง ของ เส้นทางทะเลเหนือ

1 2 Brigham, L.; McCalla, R.; Cunningham, E.; Barr, W.; VanderZwaag, D.; Chircop, A.; Santos-Pedro, V.M.; MacDonald, R.; Harder, S.; Ellis, B.; Snyder, J.; Huntington, H.; Skjoldal, H.; Gold, M.; Williams, M.; Wojhan, T.; Williams, M.; Falkingham, J. (2009). Brigham, Lawson; Santos-Pedro, V.M.; Juurmaa, K. (บ.ก.). Arctic marine shipping assessment (AMSA) (PDF). Norway: Protection of the Arctic Marine Environment (PAME), Arctic Council. เก็บ (PDF)จากแหล่งเดิมเมื่อ November 1, 2014.
↑ Østreng, Willy; Eger, Karl Magnus; Fløistad, Brit; Jørgensen-Dahl, Arnfinn; Lothe, Lars; Mejlænder-Larsen, Morten; Wergeland, Tor (2013). Shipping in Arctic Waters: A Comparison of the Northeast, Northwest and Trans Polar Passages. Springer. doi:10.1007/978-3-642-16790-4. ISBN 978-3642167898. S2CID 41481012.
↑ Buixadé Farré, Albert; Stephenson, Scott R.; Chen, Linling; Czub, Michael; Dai, Ying; Demchev, Denis; Efimov, Yaroslav; Graczyk, Piotr; Grythe, Henrik; Keil, Kathrin; Kivekäs, Niku; Kumar, Naresh; Liu, Nengye; Matelenok, Igor; Myksvoll, Mari; O'Leary, Derek; Olsen, Julia; Pavithran .A.P., Sachin; Petersen, Edward; Raspotnik, Andreas; Ryzhov, Ivan; Solski, Jan; Suo, Lingling; Troein, Caroline; Valeeva, Vilena; van Rijckevorsel, Jaap; Wighting, Jonathan (October 16, 2014). "Commercial Arctic shipping through the Northeast Passage: Routes, resources, governance, technology, and infrastructure". Polar Geography. 37 (4): 298–324. doi:10.1080/1088937X.2014.965769.
↑ Fountain, Henry (2017-07-23). "With More Ships in the Arctic, Fears of Disaster Rise". The New York Times (ภาษาอังกฤษแบบอเมริกัน). ISSN 0362-4331. สืบค้นเมื่อ 2017-07-24.
↑ McGrath, Matt (2017-08-24). "First tanker crosses northern sea route without ice breaker". BBC News (ภาษาอังกฤษแบบบริติช). สืบค้นเมื่อ 2017-08-24.
↑ Bekkers, Eddy; Francois, Joseph F.; Rojas-Romagosa, Hugo (2016-12-01). "Melting Ice Caps and the Economic Impact of Opening the Northern Sea Route" (PDF). The Economic Journal (ภาษาอังกฤษ). 128 (610): 1095–1127. doi:10.1111/ecoj.12460. ISSN 1468-0297. S2CID 55162828.
↑ "NSR transit statistics". Centre for high north logistics. สืบค้นเมื่อ 2020-12-14.

Belton, Catherine (23 June 2020). Putin's People: How the KGB Took Back Russia and Then Took on the West. New York: Farrar, Straus, Giroux. ISBN 978-0374238711.
Golden, Daniel (10 October 2017). Spy Schools: How the CIA, FBI, and Foreign Intelligence Secretly Exploit America's Universities. Henry Holt and Company. ISBN 978-1627796354.

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