German U-Boats in Argentina 1945 - U-977 - YouTube
The U-Boats That Escaped World War II by Peter DeForest : Dolphin Talk | Port O'Connor – Seadrift News
U-Boat 977 : schaeffer-heinz: Amazon.it: Libri
U-Boat 977: The True Story of the U-Boat That Escaped to Argentina : Schaeffer, Heinz, Poulain, Nadine, Faulkner, Marcus, Brooks, Geoffrey: Amazon.it: Libri
U-boat 977 da Heinz Schaeffer: Good Hardcover (1953) | Ed's Editions LLC, ABAA
The Surrender of the Last Two German U-boats in WW2 | War History Online