title: Sleep regulation: relation to photoperiod, sleep duration, waking activity, and torpor.
authors.affiliation: Institute of Pharmacology, University of Zürich, Switzerland.
authors.forename: A A
authors.initials: AA
authors.lastname: Borbély
authors.forename: I
authors.initials: I
authors.lastname: Tobler
mesh_terms: D000818:Animals; D004569:Electroencephalography; D008959:Models, Neurological; D012890:Sleep / Q000502:physiology*; D014851:Wakefulness / Q000502:physiology*