@InProceedings{DBLP:conf/icdm/KeimPSN03,
   title = {PixelMaps: A New Visual Data Mining Approach for Analyzing Large Spatial Data Sets},
   author = {Daniel A. Keim and Christian Panse and Mike Sips and Stephen C. North},
   year = 2003,
   BookTitle = {ICDM},
   att_url = {http://www2.research.att.com/areas/visualization/papers_videos/pdf/DBLP-conf-icdm-KeimPSN03.pdf}
}