• Ontwikkeling van 'n driedimensionele netwerkmodule vir optimale roetebepaling 

      Van Lill, S. W. P. (Schalk Willem Petrus) (Stellenbosch : Stellenbosch University, 2001-12)
      ENGLISH ABSTRACT: A shortest or most economical route can easily be determined by using a geographical information system (GIS). Unfortunately, most systems compute distances in two dimensional space. As computer-technology ...