U47 (潜水艦) (Japanese Wikipedia)

Analysis of information sources in references of the Wikipedia article "U47 (潜水艦)" in Japanese language version.

refsWebsite

Global rank Japanese rank

2,553^rd place

6,141^st place

8,419^th place

low place

uboat.net (Global: 2,553^rd place; Japanese: 6,141^st place)

Helgason, Guðmundur. “The Type VIIB boat U-47”. German U-boats of WWII - uboat.net. 2010年2月28日閲覧。
Helgason, Guðmundur. “War Patrols by U-47”. U-boat Patrols - uboat.net. 2010年3月23日閲覧。
Helgason, Guðmundur. “The Most Successful U-boats”. German U-boats of WWII - uboat.net. 2010年3月23日閲覧。
Helgason, Guðmundur. “Ships hit by U-47”. German U-boats of WWII - uboat.net. 2010年2月28日閲覧。