  The consequences of the Nazi-power for the scientific process are described
qualitatively in various articles and books. However, recent progress in
information systems allows a quantitative reflection. Literature databases
ranging back to the beginning of the 20th century, the ISI citation indexes
ranging back to 1945 now and sophisticated search systems are suitable tools
for this purpose. In this study the overall break in the scientific
productivity and that of selected physical journals are examined. An overview
of the citation impact of some 50 leading physicists is given. The productivity
before and after departure is analyzed and connected to biographical data.
