Stephan C. Krygsman

THE USE OF GLOBAL POSITIONING DEVICES IN TRAVEL SURVEYS - A developing country application

J. H. Nel, Stephan Krygsman, Stephan C. Krygsman, 2009 .

FUNCTIONAL TRANSPORT REGIONS IN SOUTH AFRICA: AN EXAMINATION OF NATIONAL COMMUTER DATA

J. H. Nel, T. Jong, Stephan Krygsman, 2009 .

The use of cell phone technology in activity and travel data collection

Peter Mu Schmitz, Stephan C. Krygsman, 2005 .