1. Are subordinates always stressed? A comparative analysis of rank differences in cortisol levels among primates;Abbot;Horm. Behav.,2003
2. Alvarez, L., 2004. Efecto de la dominancia social sobre la efectividad de la inducción de actividad ovárica en cabras anéstricas mediante bioestimulación sexual con machos o con hembras en estro (Effect of social dominance on the effectiveness of the sexual biostimulaiton using males of oestrous females in goats). PhD Thesis. Facultad de Medicina Veterinaria y Zootecnia, UNAM, México, 75 p.
3. Los fenómenos de bioestimulación sexual en ovejas y cabras (Sexual biostimulation in sheep and goats);Alvarez;Vet. Méx.,2001
4. Social dominance of female goats affects their response to the male effect;Alvarez;Appl. Anim. Behav. Sci.,2003
5. Social rank and response to the “male effect” in the Australian Cashmere goat;Alvarez;Anim. Rep. Sci.,2007