@article{articleb0403946,
title   = {Cortisol, adrenalin, noradrenalin and oxytocin release and milk yield during first milkings in primiparous ewes},
author = {Negrão, João Alberto and Marnet, Pierre-Guy},
year = {2003},
doi = {10.1016/s0921-4488(02)00247-x},
journal   = {Small Ruminant Research}
}