Silva, Luiz Antonio Pereira da, Angela Maria Serápioda Silva, Marsal Pereira da Silva, Josiane Angelotti, Célia Maria Miranda, and Vera Regina Ferreira Alvim. 2008. “Basic Motor-Fitness Acquisition: How Are Brazilian and Portuguese Children?”. Journal of Physical Education 8 (1), 91-96. https://periodicos.uem.br/ojs/index.php/RevEducFis/article/view/3934.