Polevoy, G. (2024) “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, 58, pp. 1006–1013. doi:10.47197/retos.v58.104290.