Viorel Petru, A., Ciprian, M. and Caius, M. (2017) “Study regarding the impact of the number of physical education classes at primary level: 10.62591/ajpa.2016/5/11”, Arena-Journal of Physical Activities, (5), pp. 143–154. Available at: https://www.uav.ro/jour/index.php/ajpa/article/view/832 (Accessed: 15November2026).