German U-Boat Losses During World War II, Axel Niestlé.
An excellent well documented and credible summary of the current state
of knowledge on U-Boat losses during the Second World War, reflecting
the discoveries made in German archives and in underwater explanation
in the sixty years since the original post-war assessments were made.
Each change is supported by a clear explanation of why the original
assessment is wrong, and the evidence for the new assessment
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