PĂUNA, Răzvan-Dorel, et al. “Supervised Vs. Unsupervised Training: A Comparative Analysis of Push-Up, Sit-Up, and Squat Improvements”. Studia Universitatis Babeş-Bolyai Educatio Artis Gymnasticae, vol. 71, no. 1, Mar. 2026, pp. 63-74, doi:10.24193/subbeag.71(1).05.