Semmelink, C.J. (Christiaan Johan); Botha, P.B.; Van der Walt, N.; Groenewald, H.; Southern African Transport Conference (21st : 2002 : Pretoria, South Africa)
(SATC, 2002-07)
Paper presented at the 21st Annual South African Transport Conference 15 - 18 July 2002 "Towards building capacity and accelerating delivery", CSIR International Convention Centre, Pretoria, South Africa.