German submarine U-89 (1941) (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "German submarine U-89 (1941)" in English language version.

refsWebsite

Global rank English rank

1books.google.com

3^rd place

3^rd place

2,553^rd place

1,888^th place

books.google.com

Gröner 1991, pp. 43–46. Gröner, Eric; Jung, Dieter; Maass, Martin (1991). German Warships 1815-1945: U-boats and Mine Warfare Vessels. Vol. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN 0-85177-593-4.

uboat.net

Helgason, Guðmundur. "Ships hit by U-89". German U-boats of WWII - uboat.net. Retrieved 26 December 2014.