G. I. Wills: Forty lives in the bebop business: mental health in a group of eminent jazz musicians. In: The British Journal of Psychiatry. 183, 2003, S.255–259, doi:10.1192/bjp.183.3.255.
George Cole:George Cole – Steve Lukather about Miles Davis. In: The Last Miles: The Music of Miles Davis 1980–1991. Equinox Publishing, London 2006, ISBN 1-84553-122-1 (stevelukather.com[abgerufen am 9.November 2014]).