German submarine U-81 (1941) (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "German submarine U-81 (1941)" in English language version.

refsWebsite

Global rank English rank

2,553^rd place

1,888^th place

uboat.net

Helgason, Guðmundur. "The Type VIIC boat U-81". German U-boats of WWII - uboat.net.
Helgason, Guðmundur. "Ships hit by U-81". German U-boats of WWII - uboat.net. Retrieved 29 December 2014.