1. Regarding Animals;Arluke,1996
2. Mixing science and emotion;Bekoff,2000
3. The Emotional Lives of Animals: A Leading Scientist Explores Animal Joy, Sorrow, and Empathy—And Why They Matter;Bekoff,2007
4. Effect of affiliative and agonistic relationships on leadership behaviour in free-ranging dogs;Bonanni;Anim. Behav.,2010
5. Equine Cultures in Transition: Ethical Questions;Bornemark,2019