HENNING, E.; TERBLANCHE, H.; KLEYNHANS, M.; CRAFFORD, D.; WOOD, P.; GRANT, C.; DU TOIT, P. Comparing Cardio Stress Index between sedentary and active populations. Suid-Afrikaans Tydskrif vir Natuurwetenskap en Tegnologie / <i>South African Journal of Science and Technology</i&gt;, v. 33, n. 1, p. 1 bladsy, 18 set. 2014.