Downes, Olin. “American Music Survey: A Study of Conditions in This Field Is Made by Dr. Hugo Leichtentritt.” The New York Times, May 12, 1946, sec. 2, 5.
Carter, Elliott. “Notes on the Program: Charles Ives.” Program notes for Second Annual Festival of Contemporary American Music, 6-10. Columbia University, New York, May 10-13, 1946.