MY SIX DAYS IN A GERMAN SUBMARINE - FM Systems
The One Time a German U-Boat Wound Up in New York City's Central Park
1/72 U Boat Type 'Molch', WWII German Midget Submarine
U-boat Types - German U-boats of WWII - Kriegsmarine
The German U-boats of WWII (Kriegsmarine) and WWI (Kaiserliche
Battle of the Atlantic: Surrender of German U-boats
Battle of the Atlantic: Archaeology of an Underwater WWII
Submarines in World War II (U.S. National Park Service)
German WW1 U-boat found off Belgian coast
World War I on the homefront Office of National Marine Sanctuaries
The Toilet Malfunction That Sank a German U-Boat