Corporation). 2 April 2013 [3 July 2014]. (原始内容存档于2014-07-03). ArcticShippingRoutes & Economic Developments. Folketinget. 25 November 2013 [3 July 2014]
post-tropical reintensification and dissipation on North Atlantic shippingroutes. Meteorological Applications (Royal Meteorological Society). 2013-07-05