 Kernphysikalische Forschungsberichte

Kernphysikalische Forschungsberichte ("Research Reports in Nuclear Physics") was an internal publication of the German "Uranverein", which was initiated under the "Heereswaffenamt" (Army Ordnance Office) in 1939; in 1942, supervision of the "Uranverein" was turned over to the Reichsforschungsrat under the Reichserziehungsministerium.Reports in this publication were classified Top Secret, they had very limited distribution, and the authors were not allowed to keep copies.