POLEVOY, Georgiy. ARTICLE RETRACTED DUE TO PLAGIARISM BY THE AUTHORUsando una técnica experimental para desarrollar la flexibilidad de los niños (Using an experimental technique to develop children’s flexibility): ARTICLE RETRACTED DUE TO PLAGIARISM BY THE AUTHOR. Retos, [S. l.], v. 58, p. 1006–1013, 2024. DOI: 10.47197/retos.v58.104290. Disponível em: http://revistaretos.org/index.php/retos/article/view/104290. Acesso em: 3 ago. 2025.