«Brain Basics: Understanding Sleep,» National Institute of Neurological Disorders and Stroke, .
368
Deirdre Barrett, «What Processes in the Brain Allow You to Remember Dreams?» Scientific American, June 12, 2014, .
369
Eugene Aserinsky and Nathaniel Kleitman, «Regularly Occurring Periods of Eye Motility, and Concomitant Phenomena, During Sleep,» Science 118 (1953): 273–74.
