• Author: Zimmerman, N. H. M. Menaker
• Title: The pineal gland: a pacemaker within the circadian system of the house sparrow
• Year: 1979
• Reference Type: Journal Article
• Journal/Book Title: Proc Natl Acad Sci U S A
• Volume: 76
• Issue: 2
• Pages: 999-1003
• Date of Publication: Thursday, 20 December 1979