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Gayle Sherwood. “Chronology and Style of Ives’s Choral Works.” Paper presented at Ives-Copland Festival. University of Northern Colorado, Hensel-Phelps Auditorium and Theater, Greeley, Colorado, October 28-30, 1993.
Baron, Carol Kitzes. “Dating Charles Ives’s Music: Facts and Fictions.” Journal of the American Musicological Society Vol. 28, No. 1 (Winter 1990): 20-56.
Burkholder, J. Peter. “Charles Ives and his Fathers: A Response to Maynard Solomon.” Institute for Studies in American Music Newsletter Vol. 18, No. 1 (November 1988): 8-11.