SM UB-61 (Polish Wikipedia)

Analysis of information sources in references of the Wikipedia article "SM UB-61" in Polish language version.

refsWebsite

Global rank Polish rank

2,553^rd place

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8,419^th place

8,747^th place

uboat.net

Guðmundur Helgason: WWI U-boat Types, Type UB III UB coastal torpedo attack boats class. [w:] The U-boats of World War One 1914-1918 [on-line]. uboat.net. [dostęp 2017-07-03]. (ang.).
Theodor Schultz, Oberleutnant zur See (Crew 4/08). [w:] The U-boats of World War One 1914-1918 [on-line]. uboat.net. [dostęp 2017-12-22]. (ang.).
Guðmundur Helgason: WWI U-boats UB 61. [w:] The U-boats of World War One 1914-1918 [on-line]. uboat.net. [dostęp 2017-12-22]. (ang.).
Guðmundur Helgason: Ships hit by UB 61. [w:] WWI U-boat Successes [on-line]. uboat.net. [dostęp 2017-12-22]. (ang.).
Guðmundur Helgason: Ships hit during WWI - Sycamore. [w:] WWI U-boat Successes [on-line]. uboat.net. [dostęp 2017-12-22]. (ang.).
Guðmundur Helgason: Ships hit during WWI - Assyria. [w:] WWI U-boat Successes [on-line]. uboat.net. [dostęp 2017-12-22]. (ang.).