WIA GC/10235 | Warburg, Aby to Klussmann, Heinrich 21/03/1905 | discusses the time and venue for his lecture 'Der Einfluß der Antike in italienischen... |
WIA GC/10266 | Warburg, Aby to Klussmann, Heinrich 16/09/1905 | thanks him for his note; confirms date and time of his lecture at the congress |
WIA GC/10902 | Warburg, Aby to Klussmann, Heinrich 15/07/1908 | thanks him for offering to transfer the announcement of Warburg's lectures [Introduction in the... |
WIA GC/12006 | Warburg, Aby to Königliche Universitätsbibliothek Göttingen 11/01/1914 | [Heinrich] Klussmann informed him that books have arrived for Warburg from Göttingen; Warburg is... |
WIA GC/12574 | Klussmann, Heinrich to Warburg, Aby 27/02/1920 | supplies reference for Dr. Marianne Kuh, librarian in the Volksbibliothek in Berlin, who is... |