<ref name="wehr">{{cite journal |vauthors=Wehr TA |date=1992 |title=In short photoperiods, human sleep is biphasic |journal=Journal of Sleep Research |volume=1 |issue=2 |pages=103-107 |doi=10.1111/j.1365-2869.1992.tb00019.x}}</ref>
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}}
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{{TNT|Polyphasic Sleep Schedules}}
[[Category:Schedules]]
[[Category:Schedules]]
Latest revision as of 19:24, 22 December 2020
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