Branstetter BK, Deakos MHH, Jenkins K, et al. Acute motor and vocal response of humpback whales ( Megaptera novaeangliae               ) to playback of amplitude-modulated noise: A method to test frequency range of hearing. The Journal of the Acoustical Society of America. 2018;144(3):1953 - 1953. Available at: http://asa.scitation.org/doi/10.1121/1.5068540.