Pienaar, Wessel. 2017. “Operational and Tegnological Requirements for the Profitable Provision of Rail Freight Transport”. Suid-Afrikaans Tydskrif Vir Natuurwetenskap En Tegnologie / <i>South African Journal of Science and Technology</I&gt; 36 (1), 11 bladsye. https://doi.org/10.4102/satnt.v36i1.1482.