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Type U 81 submarine (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Type U 81 submarine" in English language version.

refsWebsite
Global rank English rank
1uboat.net
2,553rd place
1,888th place

uboat.net

  • Helgason, Guðmundur. "WWI U-boat Types: Type U 63". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 16 March 2015.