Ubago-Jiménez, J. L., Puertas-Molero, P., González-Valero, G. and Báez-Mirón, F. (2018) “Influence of the practice of Physical Activity on schoolchildren’s aggressiveness-harassment”, Journal of Human Sport and Exercise, 13(2proc), pp. S484-S494. doi: 10.14198/jhse.2018.13.Proc2.32.