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6. REFERENCES 
Artimo,K. Spatial analysis in geographical information systems 
- a data model oriented approach. The Sth Scandinavian 
Research Conference on GIS, 12.-14.7.1995. ScanGIS 95. 
Trondheim. Norway. 
Artimo,K., Spatial analysis in GIS - a data model oriented 
approach, International Journal for Geomatics, Geomatics Info 
Magazine, vol. 10., March 1996. 
Erke,M., GIS and landscape architecture, The implementation 
of GIS technology in landscape planning, diploma thesis, 
Helsinki University of Technology, Department of Landscape 
Architecture, (not published, in Finnish), 1995. 
Steinitz, C., GIS: a personal historical perspective, GIS Europe, 
vol 2, nr 5, June 1993. 
Tomlin,D., Geographic information systems and cartographic 
modeling. Prentice Hall. 1990. 
103 
International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B4. Vienna 1996