Helgason, Guðmundur. "WWI U-boats: UC 68". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 23 February 2009.
Helgason, Guðmundur. "WWI U-boat commanders: Hans Degetau". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 3 March 2015.
Helgason, Guðmundur. "Ships hit by UC 68". German and Austrian U-boats of World War I - Kaiserliche Marine - Uboat.net. Retrieved 3 March 2015.