Scholarly discussion of the music of John Cage.

[ania jurek <>]

Dear all,

My name is Jerzy, I am Doctor of Philosophy in University of Wroclaw, Poland. 
My new book (in Polish) about philosophical contexts of Cage's ideas will be 
published very soon. My intention is to put some Cage's photographs in the 
book. Can anyone suggest me where can I acquire it since I don't want to 
overuse someone's copyrights...   
(I've already wrote to John Cage Trust at Bard College and William Gedney 
Photographs and Writings web site at Duke University Rare Book, Manuscript, 
and Special Collections Library, but haven't received any answers).

Could anyone give me any suggestions to this point?

Many thanks,

Jerzy Luty