Edwin B. A scale for the measurement of the psychological magnitude pitch. Journal of the AcousticalSocietyofAmerica. 1937, 8 (3): 185–190. (原始内容存档于2013-04-14)
role of the external ear in vertical sound localization in the free flying bat, Eptesicus fuscus. The Journal of the AcousticalSocietyofAmerica, 121(4)