WIA GC/1905/283 | Klussmann, Heinrich to Warburg, Aby 16/05/1905 | in agreement with Ferdinand Noack he supplies a date for Warburg's lecture, 05/10/1905; thanks... |
WIA GC/1912/842 | Warburg, Aby to Petersen, Peter 31/12/1912 | on the collection and correspondence of Freiherr [Franz] von Schober and Moritz von Schwind |
WIA GC/1914/688 | Eucken, Rudolf [reference for Peter Petersen] 13/12/1913 | reference for Peter Petersen; his plan to write a history of Aristotelianism in Protestant... |
WIA GC/1914/689 | Kittel, Rudolf [reference for Peter Petersen] 27/12/1913 | reference for Peter Petersen |
WIA GC/1914/690 | Lamprecht, Karl [reference for Peter Petersen] 30/12/1913 | reference for Peter Petersen; his plan to study the Aristotelian influence on Protestantism... |