SPENCER, K.; BRADY, H. Examining the effects of a variation to the ruck law in Rugby Union. Journal of Human Sport and Exercise, [S. l.], v. 10, n. 2, p. 550–562, 2015. DOI: 10.14198/jhse.2015.102.02. Disponível em: https://www.jhse.ua.es/article/view/2015-v10-n2-examining-the-effects-of-a-variation-to-the-ruck-law. Acesso em: 26 apr. 2024.