Rankin, S., J. N. Oswald, and J. Barlow. “Acoustic Behavior of Dolphins in the Pacific Ocean: Implications for Using Passive Acoustic Methods for Population Studies”. Canadian Acoustics, vol. 36, no. 1, Mar. 2008, pp. 88-92, https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1996.