Schulte-Peevers, Andrea; Sarah Johnstone; Etain O'Carroll; Jeanne Oliver; Tom Parkinson; Nicola Williams (2004). Germany(en inglés). Lonely Planet. p. 680. ISBN1-74059-471-1. Consultado o 27/12/2008.
emecs.or.jp
International Center for the Environmental Management of Enclosed Coastal Seas, ed. (2003). "Chapter 5: North Sea"(PDF). Environmental Guidebook on the Enclosed Coastal Seas of the World. Arquivado dende o orixinal(PDF) o 17-12-2008. Consultado o 24-11-2008.
Ray, Alan; G. Carleton, Jerry McCormick-Ray (2004). Coastal-marine Conservation: Science and Policy(Digitized by Google Books online) (ilustrada ed.). Blackwell Publishing. p. 262. 0632055375, 9780632055371. Consultado o 21-01-2009.
Tuckey, James Hingston (1815). Maritime Geography and Statistics ...(Dixitalizado por Google Books online (02-05-2007)). Black, Parry & Co. p. 445. 0521311918, 9780521311915. Consultado o 10-01-2009.
«On the Southwest. A line joining the Walde Lighthouse (France, 1°55'E) and Leathercoat Point (England, 51°10'N). On the Northwest. From Dunnet Head (3°22'W) in Scotland to Tor Ness (58°47'N) in the Island of Hoy, thence through this island to the Kame of Hoy (58°55'N) on to Breck Ness on Mainland (58°58'N) through this island to Costa Head (3°14'W) and to Inga Ness (59'17'N) in Westray through Westray, to Bow Head, across to Mull Head (North point of Papa Westray) and on to Seal Skerry (North point of North Ronaldsay) and thence to Horse Island (South point of the Shetland Islands). On the North. From the North point (Fethaland Point) of the Mainland of the Shetland Islands, across to Graveland Ness (60°39'N) in the Island of Yell, through Yell to Gloup Ness (1°04'W) and across to Spoo Ness (60°45'N) in Unst island, through Unst to Herma Ness (60°51'N), on to the SW point of the Rumblings and to Muckle Flugga (60°51′N 0°53′W) all these being included in the North Sea area; thence up the meridian of 0°53' West to the parallel of 61°00' North and eastward along this parallel to the coast of Norway, the whole of Viking Bank being thus included in the North Sea. On the East. The Western limit of the Skagerrak [A line joining Hanstholm (57°07′N 83°6′E) and the Naze (Lindesnes, 58°N 7°E)].». A versión orixinal, en inglés, está dispoñible en liña no sitio oficial da «International Hydrographic Organization» en: http://www.iho.int/publicat/free/files/S23_1953.pdfArquivado 24 de xuño de 2009 en Wayback Machine..
"The Wash". Arquivado dende o orixinal o 04 de marzo de 2009. Consultado o 11 de abril de 2019.
northseatrail.org
The North Sea Trail/NAVE Nortrail project (ed.). "Welcome North Sea Trail". European Union(en inglés). Arquivado dende o orixinal o 09/05/2008. Consultado o 2/1/2009.
safetyatsea.se
Todos os datos xeográficos proceden de «Safety At Sea», dispoñibles en: [1]Arquivado 09 de decembro de 2008 en Wayback Machine..
uib.no
web.gfi.uib.no
Helland-Hansen, Bjørn; Fridtjof Nansen (1909). Geofysisk Institutt, ed. "IV. The Basin of the Norwegian Sea.". Report on Norwegian Fishery and Marine-Investigations(en inglés). Arquivado dende o orixinal o 14 de xaneiro de 2009. Consultado o 5 de xaneiro do 2016.
web.archive.org
Todos os datos xeográficos proceden de «Safety At Sea», dispoñibles en: [1]Arquivado 09 de decembro de 2008 en Wayback Machine..
«On the Southwest. A line joining the Walde Lighthouse (France, 1°55'E) and Leathercoat Point (England, 51°10'N). On the Northwest. From Dunnet Head (3°22'W) in Scotland to Tor Ness (58°47'N) in the Island of Hoy, thence through this island to the Kame of Hoy (58°55'N) on to Breck Ness on Mainland (58°58'N) through this island to Costa Head (3°14'W) and to Inga Ness (59'17'N) in Westray through Westray, to Bow Head, across to Mull Head (North point of Papa Westray) and on to Seal Skerry (North point of North Ronaldsay) and thence to Horse Island (South point of the Shetland Islands). On the North. From the North point (Fethaland Point) of the Mainland of the Shetland Islands, across to Graveland Ness (60°39'N) in the Island of Yell, through Yell to Gloup Ness (1°04'W) and across to Spoo Ness (60°45'N) in Unst island, through Unst to Herma Ness (60°51'N), on to the SW point of the Rumblings and to Muckle Flugga (60°51′N 0°53′W) all these being included in the North Sea area; thence up the meridian of 0°53' West to the parallel of 61°00' North and eastward along this parallel to the coast of Norway, the whole of Viking Bank being thus included in the North Sea. On the East. The Western limit of the Skagerrak [A line joining Hanstholm (57°07′N 83°6′E) and the Naze (Lindesnes, 58°N 7°E)].». A versión orixinal, en inglés, está dispoñible en liña no sitio oficial da «International Hydrographic Organization» en: http://www.iho.int/publicat/free/files/S23_1953.pdfArquivado 24 de xuño de 2009 en Wayback Machine..
Helland-Hansen, Bjørn; Fridtjof Nansen (1909). Geofysisk Institutt, ed. "IV. The Basin of the Norwegian Sea.". Report on Norwegian Fishery and Marine-Investigations(en inglés). Arquivado dende o orixinal o 14 de xaneiro de 2009. Consultado o 5 de xaneiro do 2016.
International Center for the Environmental Management of Enclosed Coastal Seas, ed. (2003). "Chapter 5: North Sea"(PDF). Environmental Guidebook on the Enclosed Coastal Seas of the World. Arquivado dende o orixinal(PDF) o 17-12-2008. Consultado o 24-11-2008.
"Skagerrak". Arquivado dende o orixinal o 04 de marzo de 2009. Consultado o 30 de agosto de 2018.
"The Wash". Arquivado dende o orixinal o 04 de marzo de 2009. Consultado o 11 de abril de 2019.
The North Sea Trail/NAVE Nortrail project (ed.). "Welcome North Sea Trail". European Union(en inglés). Arquivado dende o orixinal o 09/05/2008. Consultado o 2/1/2009.