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The freely accessible handouts mainly emerged from special archival events. Further documents may serve interested colleagues as a basis.
Handouts in english are currently not yet available.
fig.: Adolf von Harnack, picture by Hugo Erfurth, undated; Max Planck, picture by Hugo Erfurth, around 1936; Werner Heisenberg in the Max Planck Institute for Physics, Göttingen 1948; Hans F. Zacher, 1989.