Zhengchun Hu. 2021. “Keeping a Keen Eye on Unsanctioned Aggression in Contact Sports in China: Do Personal, Aggressive and Moral Factors Count in It?”. Revista De Psicología Del Deporte (Journal of Sport Psychology) 30 (2):174-86. https://mail.rpd-online.com/index.php/rpd/article/view/367.