Prünster, V., Niedermeier, M., Greier, K., Cocca, A., & Ruedl, G. (2025). Quality of Life and Its Association with Physical Activity, Physical Fitness, and Enjoyment of Physical Education in Youth: A Study on Gender Differences. Journal on Efficiency and Responsibility in Education and Science, 18(1), 31–39. https://doi.org/10.7160/eriesj.2025.180104