1. Aron, A., Aron, E.N., 1999. Statistics for Psychology. Prentice-Hall, Englewood Cliffs, NJ.
2. Physiological measurements in horses after strenuous exercise in hot, humid conditions;Art;Equine Vet. J.,1995
3. Effects of handling and transportation on the heart rate and behaviour of sheep;Baldock;Appl. Anim. Behav. Sci.,1990
4. The effects of orientation during trailer transport on heart rate, cortisol, and balance in horses;Clark;Appl. Anim. Behav. Sci.,1993
5. Reducing equine hauling stress: a review;Cregier;Equine Vet. Sci.,1982