Henning, E., Kleynhans, M., de Villiers, N. and du Toit, P. 2013. Comparing the Cardio Stress Index of a training population with University students. Suid-Afrikaans Tydskrif vir Natuurwetenskap en Tegnologie / <i>South African Journal of Science and Technology</i&gt;. 32, 1 (Dec. 2013), 1 page. DOI:https://doi.org/10.4102/satnt.v32i1.838.