Pušnik, Tim, Tadeja Volmut, and Boštjan Šimunič. 2015. “THE QUANTITY AND INTENSITY OF PHYSICAL ACTIVITY DURING PHYSICAL EDUCATION IN 3rd GRADE PRIMARY SCHOOL CHILDREN”. Annales Kinesiologiae 5 (2). http://ojs.zrs-kp.si/index.php/AK/article/view/35.