Polevoy G. ARTICLE RETRACTED DUE TO PLAGIARISM BY THE AUTHOR Períodos sensitivos para el desarrollo de la resistencia de los escolares (Sensitive periods for the development of endurance of schoolchildren): ARTICLE RETRACTED DUE TO PLAGIARISM BY THE AUTHOR. Retos [Internet]. 1 de junio de 2024 [citado 9 de abril de 2025];55:672-8. Disponible en: https://recyt.fecyt.es/index.php/retos/article/view/104093