1. Anselin, L.: The Moran scatterplot as an ESDA tool to assess local instability in spatial association. In: Fisher, M., Scholten, H., Unwin, D. (eds.) Spatial Analytical Perspectives on GIS, pp. 111–125. Taylor and Francis, London (1996)
2. Bailey, T.C., Gatrell, A.C.: Interactive spatial data analysis. Addison-Wesley Longman, Edinburgh (1995)
3. Borruso, G.: Network density and the delimitation of urban areas. Transactions in GIS 7(2), 177–191 (2003)
4. Fayyad, U., Piatesky-Shapiro, G.,Smyth, P.: From Data Mining to Knowledge Discovery in Databases (1996) http://www.kdnuggets.com/gpspubs/aimag−kdd−overview −1996−fayyad.pdf
5. Gatrell, A., Bailey, T., Diggle, P., Rowlingson, B.: Spatial Point Pattern Analysis and its Application in Geographical Epidemiology. Transactions of the Institute of British Geographers (2), 1256–1274 (1996)