1. Sleep in Mammals: Ecological and Constitutional Correlates
2. N. Black, 1994 . Behavior and ecology of Pacific white-sided dolphins (Lagenorhynchus obliquidens) in Monterey Bay, California . M. Sc. thesis . San Francisco State University, San Francisco, CA. 133 pp.
3. P. D. Goley, 1996 . Two aspects of group organization in a captive Pacific white-sided dolphin school (Lagenorhynchus obliquidens): Sleep and dawn-dusk chorusing . Ph. D. dissertation , University of California at Santa Cruz, Santa Cruz, CA. 97 pp.