Petričková, Lucia, and Klaudia Zusková. “Life Satisfaction of Physical Education Teachers in Relation to Teaching One or Two Subjects and to Extracurricular Sports Activities”. Sport and Tourism Central European Journal 16, no. 2 (April 3, 2019): 145–157. Accessed April 26, 2024. https://czasopisma.ujd.edu.pl/index.php/sport/article/view/335.