Gérard Després

Heart rate variability as a measure of autonomic regulation of cardiac activity for assessing stress and welfare in farm animals — A review

Armelle Prunier, Isabelle Veissier, Jan Langbein, 2007, Physiology & Behavior.

Changes in social environment induce higher emotional disturbances than changes in physical environment in quail

Alain Boissy, C. Arnould, A. Boissy, 2008 .