POLEVOY, Georgiy. ARTICLE RETRACTED DUE TO PLAGIARISM BY THE AUTHOR Sensitive periods of flexibility development at school age: ARTICLE RETRACTED DUE TO PLAGIARISM BY THE AUTHOR . Retos, [S. l.], v. 56, p. 1066–1074, 2024. DOI: 10.47197/retos.v56.106243. Disponível em: https://revistaretos.org/index.php/retos/article/view/106243. Acesso em: 9 nov. 2026.