^Mandel, Howard (2002). "Air". In Barry Kernfeld (ed.). The New Grove Dictionary of Jazz Vol. 1 (2nd ed.). New York: Grove's Dictionaries Inc. pp. 20–21. ISBN1-56159-284-6.
^Yanow, Scott (1998). Erlewine, Michael; Bogdanov, Vladimir; Woodstra, Chris; Yanow, Scott (eds.). All Music Guide to Jazz (3 ed.). San Francisco: Miller Freeman. p. 12. ISBN0-87930-530-4.