1. Craig, W., Harris, T. and Weiner, D. (1999) `Empowerment, marginalization and public participation GIS', Specialist Meeting Report compiled for Varenius: NCGIA's Project to Advance Geographic Information Science, NCGIA, University of California, Santa Barbara, February.
2. Empowerment, Marginalization, and "Community-integrated" GIS
3. GIS in Africa: problems, challenges and opportunities for co-operation