POSTHUMUS, M. BokSmart: Safe and effective techniques in rugby union. South African Journal of Sports Medicine, [S. l.], v. 20, n. 3, 2008. DOI: 10.17159/2078-516X/2008/v20i3a633. Disponível em: https://journals.assaf.org.za/index.php/sajsm/article/view/633. Acesso em: 4 may. 2024.