==External links==*Pre-ignition and Detonation by Bob Hewitt (Misterfixit) Accessed June 2007*NACA - Combustion and knock in a spark-ignition engine*NACA - Ionization in the knock zone of an internal combustion engine*NACA - Interdependence of various types of autoignition and knock*Avweb - Detonation myths*Misterfixit - What is detonation?
*Charles Fayette Taylor, "Internal Combustion Engine In Theory And Practice, Second Edition, Revised, Volume 2", MIT Press, 1985, Chapter 2 on "Detonation and Preignition", pp 34–85, ISBN 9780262700276.