Voicu, Alexandru-Virgil, and Bogdan-Iosif Voicu. 2019. “The Qualification of Professional Liability As a Form of Legal Liability As Basis for an Approach to the Problem of Malpractice in Physical Education and Sport”. Arena-Journal of Physical Activities, no. 7 (April):7-20. https://www.uav.ro/jour/index.php/ajpa/article/view/1221.