Planck, Max
born 23. April 1858 in Kiel; died 4. October 1947 in GöttingenBrief von Max Planck an Adolf Erman
Grunewald, 16.07.1915Brief von Max Planck an Adolf Erman
Grunewald, 20.07.1915Brief von Max Planck an Adolf Erman
Grunewald, 30.04.1933Runge, Carl
born 30. August 1856 in Bremen; died 3. January 1927 in Göttingen