L. F. Guarín-García and J. M. Castellanos-Obregón, “Between play and aggression: Norms and rules of playful communicative events in a scholastic context”, Rev.latinoam.cienc.soc.niñez juv, vol. 15, no. 1, pp. 193–205, Feb. 2017, doi: 10.11600/1692715x.1511130112016.