Rottermund, Krzysztof. “Filozofia, estetyka i warsztat w utworze Charlesa Ivesa The Unanswered Question." Zeszyty naukowe 28 (1989): 199-202.

Gratovich, Eugene. “Ives Second Violin Sonata: Performance Alternatives.” American String Teacher 29/2 (Spring 1979): 46-49. 

Goss, Glenda Dawn. Music and the Moderns: The Life and Works of Carol Robinson. Metuchen, NJ: Scarecrow Press, 1993.

Gaudibert, Eric. “A propos de From the steeples and the mountains d’lves.” Dissonanz/Dissonance 29 (August 1991): 14-15.

Christensen, Erik. The Musical Timespace: A Theory of Music Listening. Alborg, Denmark: Alborg University Press, 1996.

Carter, Elliott. “Stravinsky and Other Moderns in 1940.” Modern Music 17/3 (March-April 1940): 164-170.

Taruskin, Richard. “Away With the Ives Myth: The 'Universe' Is Here at Last.” The New York Times. October 23, 1994, sec. H: 42. 

Taruskin, Richard. “Out of Hibernation, Ives's Mythical Beast.” The New York Times. June 2 1996, sec. 2, 26.

Snapp, Kenneth. “Build a Band—And Educate It, Too.” Instrumentalist 32/2 (September 1977): 52-53.

Schonberg, Harold. "Complex and Yet Simple.” The New York Times. May 2, 1965, sec. 2: 11.