• Author: Gwinner, E.
• Title: Annual rhythms of gonadal size, migratory disposition, and molt in garden warblersSylvia borinexposed in winter to an equatorial or a southern hemisphere photoperiod
• Year: 1987
• Reference Type: Journal Article
• Journal/Book Title: Ornis Scandinavica
• Volume: 18
• Pages: 251-256
• Date of Publication: Sunday, 20 December 1987