DU TOIT, DE; OLIVIER, P; GRENFELL, L; EKSTEEN, B. Isokinetic neck strength norms for schoolboy rugby forwards. South African Journal of Sports Medicine, [S. l.], v. 17, n. 1, p. 19–26, 2005. DOI: 10.17159/2078-516X/2005/v17i1a175. Disponível em: https://journals.assaf.org.za/index.php/sajsm/article/view/175. Acesso em: 10 apr. 2025.