SM U-31 (Germany) (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "SM U-31 (Germany)" in English language version.

refsWebsite
Global rank English rank
2,553rd place
1,888th place
1st place
1st place
30th place
24th place

telegraph.co.uk

uboat.net

  • Helgason, GuĂ°mundur. "WWI U-boat commanders: Siegfried Wachendorff". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 16 March 2015.

web.archive.org