Bürger-Mendonça, M., M. Bielavsky, and F. C. Retondaro-Barbosa. “Significant Sodium Plasma Reduction After Half-Ironman Triathlon in Brazilian Triathletes”. Journal of Human Sport and Exercise, vol. 4, no. 3, Oct. 2009, pp. 246-53, doi:10.4100/jhse.2009.43.06.