• Author: Lockley, S. W. D. J. Skene J. Arendt
• Title: Comparison between subjective and actigraphic measurement of sleep and sleep rhythms
• Year: 1999
• Reference Type: Journal Article
• Journal/Book Title: J Sleep Res
• Volume: 8
• Issue: 3
• Pages: 175-83
• Date of Publication: Monday, 20 December 1999