1. Sleep in mammals: ecological and constitutional correlates;Allison;Science,1976
2. A two-process model of sleep regulation. I. Physiological basis and outline;Borbély;Human Neurobiol.,1982
3. Sleep deprivation: effects on sleep and EEG in the rat;Borbély;J. Comp. Physiol.,1979
4. Effect on sleep deprivation on sleep and EEG power spectra in the rat;Borbély;Behav. Brain Res.,1984
5. Animal sleep: a review of sleep duration across phylogeny;Campbell;Neurosci. Biobehav. Rev.,1984