Dugas, JP, B Burger, and TD Noakes. “Short Report: New Use of Current Technology to Measure Rectal Temperature and Heart Rate During Endurance ExerciseToEd”. South African Journal of Sports Medicine 17, no. 1 (January 1, 2006): 29–30. Accessed December 22, 2024. https://journals.assaf.org.za/index.php/sajsm/article/view/177.