Boross, Barbara, and Katalin Tóthné Maros. “How Do the Familiarity of a Person and the Type of Training Effect the Behaviour of Horses in the Person Test?”. Animal Welfare, Ethology and Housing Systems (AWETH), vol. 4, no. 1, Apr. 2008, pp. 26-51, https://journal.uni-mate.hu/index.php/aweth/article/view/6862.