Van Biljon, B.; Visser, D.; Steynberg, R.J.; Scheepers, J.; Southern African Transport Conference (22nd : 2003 : Pretoria, South Africa)
(SATC, 2003-07)
Paper presented at the 22nd Annual Southern African Transport Conference 14 - 16 July 2003 "National issues affecting the movement of people and goods - strategic approaches", CSIR International Convention Centre, Pretoria, ...