The Austrian U-3 had developed a leak and was undergoing repairs that eventually kept her at Pola until 27 April. See: "Tengeralattjárók"(PDF) (in Hungarian). Imperial and Royal Navy Association. p. 3. Archived from the original(PDF) on 11 October 2021. Retrieved 4 April 2009.
Helgason, Guðmundur. "WWI U-boats: UB 8". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 19 February 2009.
Helgason, Guðmundur. "WWI U-boat commanders: Ernst von Voigt". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 5 April 2009.
Helgason, Guðmundur. "Ships hit by UB 8". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 5 April 2009.
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The Austrian U-3 had developed a leak and was undergoing repairs that eventually kept her at Pola until 27 April. See: "Tengeralattjárók"(PDF) (in Hungarian). Imperial and Royal Navy Association. p. 3. Archived from the original(PDF) on 11 October 2021. Retrieved 4 April 2009.