1. Photoperiod, pineal, melatonin and reproduction in hamsters;Hoffmann;Prog Brain Res,1979
2. Role of melatonin and circadian rhythms in seasonal reproduction in rams;Lincoln;J Reprod Fertil Suppl,1981
3. The physiology of reproduction;Marshall,1910
4. Tumor des Glandula pinealis;Heubner;Dtsch Med Wochenschr,1898
5. Isolation of melatonin, the pineal gland factor that lightens melanocytes;Lerner;J Am Chem Soc,1958