Concise chronology of approach to the poles, Scott Polar Research Institute
^ Antarctica.org
^ Aviation History Facts, U.S. Centennial of Flight Commission
^ Obituary of Sir Wally Herbert, Times Online, 13 June 2007
^ a b Obituary of Sir Wally Herbert, Guardian Unlimited, 15 June 2007
^ northpolewomen.com
^ Ftterer, D. et al. (1992) The Expedition ARK-VIII/3 of RV Polarstern in 1991, Reports on Polar and Marine Research, Bremerhaven, 107, 267 pp, hdl:10013/epic.10107.d001 (pdf 6.4 MB)
^ Thiede, J. et al. (2002) POLARSTERN ARKTIS XVII/2 Cruise Report: AMORE 2001 (Arctic Mid-Ocean Ridge Expedition), Reports on Polar and Marine Research, Bremerhaven, 421, 390 pp, hdl:10013/epic.10426.d001 (pdf 8 MB)
^ USS Charlotte Achieves Milestone During Under-Ice Transit, Navy NewsStand website, retrieved May 2007
^ Website of the artist
^ Swimmer rises to Arctic challenge, BBC news, 15 July 2007
^ BBC Top Gear Production Notes (Polar Special)
^ (Russian) Press release of the AARI, July 9, 2007
^ a b Russia plants flag under N Pole, BBC News, 2 August 2007
^ (Russian) News video of Russian descent to North Pole seabed
^ BBC News video of Russian descent to North Pole seabed
^ Russia North Pole Obsession, The New York Times, August 2, 2007
^ The Big Melt, The New York Times, October 2005
^ “Science question of the week”, Goddard Space Center
^ Beyond “Polar Express”: Fast Facts on the Real North Pole, National Geographic News
^ a b The Top of the World: Is the North Pole Turning to Water?, John L. Daly
^ “Arctic ice thickness drops by up to 19 per cent”, Daily Telegraph, 28 October 2008
^ Arctic sea ice “faces rapid melt”, BBC news