Gutiérrez Ángel N. Bibliographic analysis of the characteristics and consequences of the roles played in school violence: Aggressors, victims and observers. Apunt. Psic. [Internet]. 2018 Nov. 5 [cited 2026 Oct. 26];36(3):181-90. Available from: https://apuntesdepsicologia.es/index.php/revista/article/view/749