Szabo, Attila, Szilvia Boros, and Júlia Patakiné Bősze. 2019. “Are There Differences in Life-Satisfaction, Optimism, Pessimism and Perceived Stress Between Therapeutic and Mastery Exercisers? A Preliminary Investigation”. Baltic Journal of Sport and Health Sciences 3 (114). https://doi.org/10.33607/bjshs.v3i114.807.