Mackenbrock J, Gawlik A, Pels F, Kleinert J. Improving Students’ Motivation for Physical Activity Using Digital Media: A Quasi-Experimental Study in Physical Education Using Smartphones and Tablets. Int. J. Interact. Mob. Technol. [Internet]. 2025 Feb. 27 [cited 2026 Apr. 27];19(04):pp. 4-25. Available from: https://online-journals.org/index.php/i-jim/article/view/51969