• Author: Vivien-Roels, B. J. Arendt J. Bradtke
• Title: Circadian and circannual fluctuations of pineal indoleamines (serotonin and melatonin) in Testudo hermanni Gmelin (Reptilia, Chelonia). I. Under natural conditions of photoperiod and temperature
• Year: 1979
• Reference Type: Journal Article
• Journal/Book Title: Gen Comp Endocrinol
• Volume: 37
• Issue: 2
• Pages: 197-210
• Date of Publication: Thursday, 20 December 1979