Caballero García, M. F., Alcaraz Muñoz, V., Alonso Roque, J. I., & Yuste Lucas, J. L. (2016). Emotional intensity in the class of Physical Education depending on the victory: cooperation-opposition games. Interuniversity Electronic Journal of Teacher Formation, 19(3), 123–133. https://doi.org/10.6018/reifop.19.3.267291