Paim, M. C. C., and I. Kalinine. “Strength of Nervous System Excitement Processes and Personality Trace of Physical Education Students from Santa Maria Federal University (UFSM)”. Journal of Physical Education , Vol. 13, no. 1, June 2008, pp. 63-69, https://periodicos.uem.br/ojs/index.php/RevEducFis/article/view/3725.