RETOS, RETOS. RETRACTION Polevoy, G. (2024). Usando una técnica experimental para desarrollar la flexibilidad de los niños (Using an experimental technique to develop children’s flexibility). Retos, 58, 1006–1013. https://doi.org/10.47197/retos.v58.104290. Retos, [S. l.], v. 63, 2025. DOI: 10.47197/retos.v58.112685. Disponível em: http://207.180.252.49/index.php/retos/article/view/112685. Acesso em: 16 dec. 2025.