1. ArcNews (1997) Viso Corporation adopts MapObjects, ArcNews, 19(2): 1, Environmental Systems Research Institute Inc.
2. Huxhold, W.E. (1991) An Introduction to Urban Geographic Information Systems, Oxford University Press, New York.
3. Kim, D. (2001) Design and assessment of web-based Geographic Information Systems, Masters Project, College of Urban Planning and Public Affairs, University of Illinois at Chicago.
4. Kingston, R. (1998) Web-based GIS for public participation decision making in the UK, A paper presented at the Empowerment, Marginalisation, and Public Participation GIS Meeting in Santa Barbara, California, 14–17 October.
5. Lynch, K. (1960) The Image of the City, MIT Press, Cambridge.