1. Uncertainties in land information databases;Bedard,1987
2. Theory for the integration of scale and representation formats: major concepts and practical implications;Bruegger,1995
3. Fuzzy mathematical methods for soil survey and land evaluation;Burrough;J. Soil Sci.,1989
4. The error component in spatial data;Chrisman,1991
5. Modelling uncertainty in photo-interpreted boundaries;Edwards;Photogramm. Eng. Remote Sens.,1996