@inproceedings{inproceedings26496fd5,
title   = {Duration of melatonin night-time secretion in wool and hairless ewe lambs under natural photoperiod in southeast of Brazil and its relationship with incidence of estrous},
author = {Rodrigues, P A and Coelho, Lia de Alencar and Sasa, A. and Nonaka, K O and Cipolla Neto, José},
year = {2002},
booktitle   = {European Pineal and Biological Rhythms Society Symposium}
}