WIA GC/11089 | Warburg, Aby to Koetschau, Karl; Kautzsch, Rudolf and Wulff, Otto 15/08/1909 | agrees with the others on [Hugo von] Tschudi re Annual Report and Bibliography; discusses who... |
WIA GC/27968 | Uhde-Bernays, Hermann to Warburg, Aby 22/06/1909 | thanks him for Warburg's letter and pieces of advice; Dr. [Georg] Biermann and Uhde-Bernays have... |
WIA GC/3082 | Koetschau, Karl to Warburg, Aby 18/05/1908 | on the flow of letters; on the publications: 'Repertorium f. Kunstwissenschaft', art chronicle... |
WIA GC/3399 | Biermann, Georg to Warburg, Aby 13/07/1909 | asks Warburg whether the congress will discuss the project of publishing a bibliography as... |
WIA GC/3567 | Waetzoldt, Wilhelm to Warburg, Aby 03/09/1909 | [Karl] Koetschau accepted Waetzoldt's suggestion that he discuss Emil Schaeffer's article in... |