Weil, Simon: Circling Om: An Exploration of John Coltrane's Later Works August 6, 2004. All About Jazz. Viitattu 9.4.2008. (englanniksi):"At times I couldn't hear what I was doing - matter of fact, I couldn't hear what anybody was doing. All I could hear was a lot of noise."
”John Coltrane.” The Concise Grove Dictionary of Music. Oxford University Press, Inc., 1994. Answers.com 15 Oct. 2007. http://www.answers.com/topic/john-coltrane"After Charlie Parker he was the most innovatory and widely imitated jazz saxophonist."
Marc Sabatella: Coltrane Changes (Teoksessa A Jazz Improvisation Primer) 1992-2000. Outside Shore Music. Viitattu 19.9.2007.
room34.com
Anderson,Scott: [http://room34.com/coltrane/thesis John Coltrane, Avant Garde Jazz,
and the Evolution of “My Favorite Things”] (Thesis for Honors in Music History and Literature program at Gustavus Adolphus College, St. Peter, Minnesota) room34.com. Spring 1996. Viitattu 9.4. 2008. (englanniksi)