Kallitsounaki Γ., Digelidis Ν., Kiamouri Α., M. Angeli, and Krommidas Χ. “Students’ Out-of-School Physical Activity and Math Performance”. Inquiries in Physical Education and Sport, vol. 22, no. 2, Mar. 2025, pp. 69-82, doi:10.26253/heal.uth.ojs.ispe.2024.2275.