Kirsi Virrantaus Håvard Tveite ScanGIS'2003 - The 9th Scandinavian Research Conference on Geographical Information Science, 4-6 June 2003, Espoo, Finland - Proceedings ScanGIS 951-22-6565-6 2003 Department of Surveying, Helsinki University of Technology db/conf/scangis/scangis2003.html