• Author: Rüger, M. M. C. Gordijn D. G. Beersma B. de Vries S. Daan
• Title: Acute and phase-shifting effects of ocular and extraocular light in human circadian physiology
• Year: 2003
• Reference Type: Journal Article
• Journal/Book Title: J. Biol. Rhythms
• Volume: 18
• Issue: 5
• Pages: 409-19
• Date of Publication: Saturday, 20 December 2003