Riehl group which worked at Plant No. 12 in Ehlektrostal'. Born, Catsch, Riehl, and Zimmer were on the list. In West Germany Upon Zimmer's release from the Soviet Union in 1955, he eventually went to West Germany under legal circumstances, where he worked at the Kernforschungszentrum Karlsruhe (Karlsruhe Nuclear Research Center), founded in 1956 and later known as the Forschungszentrum Karlsruhe. He became director of the Instituts für Strahlenbiologie (IStB, Institute for Radiation Biology). Internal report The following was published in Kernphysikalische Forschungsberichte (Research Reports in Nuclear Physics), an internal publication of the German Uranverein. Reports in this publication were classified Top Secret, they had very limited distribution, and the authors were not allowed to keep copies. The reports were confiscated under the Allied Operation Alsos and sent to the United States Atomic Energy Commission for evaluation. In 1971, the reports were declassified and returned to Germany. The reports are available at the Karlsruhe Nuclear Research Center and the American Institute of Physics. Karl G. Zimmer Bericht über die Untersuchungen der relativen Wirksamkeit von Röntgenstrahlen und schnellen Neutronen bezügl. der Erzeugung von Chromosomenmutationen. G-297. Selected publications The majority of these literature citations have been garnered by searching on variations of the author's name on Google, Google Scholar, and the Energy Citations Database, and use of a bibliography of N. V. Timofeev-Resovskij provided by the Laboratory of Radiation Biology of the JINR, Dubna. N. W. Timofeeff-Ressovsky and K. G. Zimmer Ein Beitrag zur Frage nach der Beziehung zwischen Röntgenstrahlendosis und dadurch ausgelöster Mutationsrate, Strahlentherapie Volume 51 (1934) Timofeeff-Ressovky, N. W., K. G. Zimmer, and M. Delbrück Über die Natur der Genmutation und der Genstruktur, Nachrichten von der Gesellschaft der Wissenschaften zu Göttingen: Mathematische-Physikalische Klasse, Fachgruppe VI, Biologie Bd. 1, Nr. 13, 189-245 (1935). Timofeeff-Ressovsky was identified as being from the Genetische Abteilung des Kaiser-Wilhelm-Instituts für Hirnforschung in Berlin-Buch. Zimmer was identified as being from the Strahlenabteilung des Cecilienhauses in Berlin-Charlottenburg. Delbrück was identified as being from the Physikalische-Radioaktive Abteilung des Kaiser-Wilhelm-Instituts für Chemie in Berlin-Dahlem. This paper, from the color of the journal's cover, has become known as the "Green Pamphlet" and sometimes as the Dreimännerarbeit (Three-Man Paper) of genetics, to distinguish it from the historical Dreimännerarbeit by Max Born, Werner Heisenberg, and Pascual Jordan, which launched quantum Matrix mechanics in 1925. N. W. Timofeeff-Ressovsky and K. G. Zimmer Strahlengenetische Zeitfaktorversuche an Drosophila melanogastery, Strahlentherapie Volume 53, 134-138 (1935) N. W.