Szentléleki, Andrea, Rita Zándoki, Zoltán Domokos, Márton Bujdosó, and János Tőzsér. 2005. “Investigation of Behaviour and Reproduction Ability in Horned and Polled Charolais Sire Candidates”. Animal Welfare, Ethology and Housing Systems (AWETH) 1 (2): 110-20. https://journal.uni-mate.hu/index.php/aweth/article/view/6950.