Christine Plumejeaud Jean-Marc Vincent Claude Grasland Sandro Bimonte Hélène Mathian Serge Guelton Joël Boulier Jérôme Gensel HyperSmooth: A System for Interactive Spatial Analysis Via Potential Maps. 4-16 2008 W2GIS http://dx.doi.org/10.1007/978-3-540-89903-7_2 conf/w2gis/2008 db/conf/w2gis/w2gis2008.html#PlumejeaudVGBMGBG08