Chun-He Xu

Old world frog and bird vocalizations contain prominent ultrasonic harmonics.

A. Feng, H. Schnitzler, P. Narins, 2004, The Journal of the Acoustical Society of America.

Voices of the dead: Complex nonlinear vocal signals from the larynx of an ultrasonic frog

A. Feng, H. Schnitzler, P. Narins, 2006 .

Voices of the dead: complex nonlinear vocal signals from the larynx of an ultrasonic frog

A. Feng, H. Schnitzler, P. Narins, 2006, Journal of Experimental Biology.

Ultrasonic communication in frogs

Peter M. Narins, Albert S. Feng, Qiang Qiu, 2006, Nature.