Guerra submarina (Catalan Wikipedia)

Analysis of information sources in references of the Wikipedia article "Guerra submarina" in Catalan language version.

refsWebsite

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2web.archive.org

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google.cat

books.google.cat

Tucker, Spencer; Roberts, Priscilla Mary. Daniel Ramos. World War I: Encyclopedia (Digitized by Google Books online). United States: ABC-CLIO, 9 gener 2014, p. 312. ISBN 9781851094202.

gwpda.org

Vegeu The Holtzendorff Memo (English translation) amb notes

jhu.edu

muse.jhu.edu

Dirk Steffen, "The Holtzendorff Memorandum of 22 December 1916 and Germany's Declaration of Unrestricted U-boat Warfare." Journal of Military History 68.1 (2004): 215–224. excerpt

newatlas.com

Szondy, David. «Rising tide: Submarines and the future of undersea warfare». New Atlas, 05-07-2017. [Consulta: 18 novembre 2018].

numa.net

«Story of the U-21». Arxivat de l'original el 27 desembre 2008. [Consulta: 2 novembre 2008].

uboat.net

Helgason, Guðmundur. «WWI U-boats: U 9». [Consulta: 2 novembre 2008].

uh.edu

«Civil War Submarine». Universitat de Houston. [Consulta: 18 novembre 2018].

web.archive.org

«Story of the U-21». Arxivat de l'original el 27 desembre 2008. [Consulta: 2 novembre 2008].
Klemen, L. «The U-Boat War in the Indian Ocean». Forgotten Campaign: The Dutch East Indies Campaign 1941–1942, 1999–2000. Arxivat de l'original el 21 març 2011.

webs.com

dutcheastindies.webs.com

Klemen, L. «The U-Boat War in the Indian Ocean». Forgotten Campaign: The Dutch East Indies Campaign 1941–1942, 1999–2000. Arxivat de l'original el 21 març 2011.