Benedek, Florian, Jacek Sobon, and Mirela Benedek. “Monitoring the Heart Rate of Trained and of Untrained Students in Physical Effort”. Annals of “Dunarea de Jos” University of Galati. Fascicle XV, Physical Education and Sport Management 1 (August 22, 2012): 22-26. Accessed May 17, 2024. https://www.gup.ugal.ro/ugaljournals/index.php/efms/article/view/10.