WIA GC/1905/276 | Kern, Guido Joseph to Warburg, Aby 16/03/1905 | he mentions Warburg's work in his essay on Botticelli and thanks him for the note which reached... |
WIA GC/1905/277 | Kern, Guido Joseph to Warburg, Aby 21/08/1905 | thanks Warburg for his encouragement to continue with his research; mathematicians also encourage... |
WIA GC/1905/533 | Schwedeler-Meyer, Ernst to Warburg, Aby 05/09/1905 | thanks him for essay ['imprese amorose']; on the essay by Guido Joseph Kern, a colleague of his... |
WIA GC/1905/534 | Warburg, Aby to Schwedeler-Meyer, Ernst 08/09/1905 | he thinks highly of Guido Joseph Kern's essay, but is disappointed by the way in which he... |
WIA GC/1906/628 | Schwedeler-Meyer, Ernst to Warburg, Aby 02/09/1906 | congratulates Warburg on the news of the planned professorship in Bonn; on Adolph Goldschmidt... |