@article{article9aa045aa,
title   = {Annual pattern of plasma melatonin and progesterone concentrations in hair and wool ewe lambs kept under natural photoperiod at lower latitudes in the southern hemisphere},
author = {Coelho, Lia de Alencar and Rodrigues, P. A. and Nonaka, K. O. and Sasa, A. and Balieiro, Júlio Cesar de Carvalho and Vicente, W. R. R. and Cipolla Neto, José},
year = {2006},
doi = {10.1111/j.1600-079x.2006.00333.x},
journal   = {Journal of Pineal Research}
}