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German submarine U-18 (1935) (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "German submarine U-18 (1935)" in English language version.

refsWebsite
Global rank English rank
1worldcat.org
5th place
5th place
1uboat.net
2,553rd place
1,888th place

uboat.net

  • Helgason, Guðmundur. "Ships hit by U-18". German U-boats of WWII - uboat.net. Retrieved 4 February 2014.

worldcat.org

  • Bartelski, Jan (2014). "Nieudane ataki torpedowe U-Bootów na ORP Sęp". Morze, Statki i Okręty (in Polish). No. 9-10/2014 (148). Warsaw. p. 24. ISSN 1426-529X.