Costa M, Ribeiro JC, Silva MP, Mota J. Clases de Educación Física con diferentes duraciones y su contribución a las Recomendaciones de Actividad Física Diaria de Adolescentes en Porto, Portugal (Physical Education Classes with different durations, and their contribution to Daily Physical Activity Recommendations of Adolescents in Porto, Portugal). Retos [Internet]. 2024 Sep. 1 [cited 2026 Jan. 12];58:182-9. Available from: http://revistaretos.org/index.php/retos/article/view/106478