WIA GC/10760 | Warburg, Aby to Deutsch, Otto Erich 30/11/1907 | he cannot understand Strzygowski; Warburg suggested steps which would lead to an honourable... |
WIA GC/10767 | Warburg, Aby to Deutsch, Otto Erich 05/12/1907 | on Strzygowski's letter; Warburg insists on receiving a proper reply to his letter and insists... |
WIA GC/10776 | Warburg, Aby to Koetschau, Karl 10/12/1907 | thanks him for his very useful article re firing position in the Strzygowski resignation affair... |
WIA GC/10778 | Warburg, Aby to Deutsch, Otto Erich [December 1907] | thanks him for his report; discusses Strzygowski who could go far if he threw aside his vanity |
WIA GC/10825 | Warburg, Aby to Deutsch, Otto Erich 30/01/1908 | replies to his questions in detail, on Prade, Marie Satran [Safran?], Julius Campe [Hoffmann und... |