Cárdenas-Vélez, D., Perales, J. C., Chirosa, L. J., Conde-González, J., Aguilar-Martínez, D., & Araya, S. (2013). The effect of mental workload on the intensity and emotional dynamics of perceived exertion. Anales De Psicología Annals of Psychology, 29(3), 662–673. https://doi.org/10.6018/analesps.29.3.175801