1. Cartographic Displays to Support Locational Decision Making
2. Electronic mapping systems — a multimedia approach to spatial data use;Asche,1993
3. NCGIA Research Initiative 7: Visualization of Spatial Data Quality: NCGIA;Beard;Technical Paper 91-26,1991
4. Spatial Processes;Board,1993
5. Graphical and geographical components of data quality;Buttenfield,1994