Ostrowska, Małgorzata. 2023. “Problematic Behaviours of Primary School Students During Physical Education Classes”. In Physical Education, Sport and Olympism from a Pedagogical Perspective, edited by Jolanta E. Kowalska and Arkadiusz Kaźmierczak, 105-17. Poland: Lodz University Press. https://doi.org/10.18778/8331-324-5-08.