Schiopu, Nicolae, Hans Kunov, and Poul B. Madsen. 1997. “Ultrasonic Hearing: Transient Evoked Otoacoustic Emissions Elicited by Bone-Conducted Ultrasonic Stimuli”. Canadian Acoustics 25 (4):31-31. https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1110.