Caspar von Schrenck-Notzing
KMMANLY
Gerhard Frey
Robert Wolfe - Gustav Hilger: From Hitler's Foreign Office to CIA Consultant (2006)
Gustav Hilger
Kevin C. Ruffner - Forging an Intelligence Partnership: CIA and the Origins of the BND, 1945-49 - A Documentary History (1999)
Hermann Baun
Operation Rusty
A Dark Tale of Germany’s Most Powerful Party: Covid-19 and the Resurgence of the Christian Democrats
Albert Norden - Revanchists at Work: Bombs in Alto Adige and Berlin (1963)
Interdoc
Eberhard Blum
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