@Journal{DBLP:journals/tvcg/PanseSKN06,
   title = {Visualization of Geo-spatial Point Sets via Global Shape Transformation and Local Pixel Placement},
   author = {Christian Panse and Mike Sips and Daniel A. Keim and Stephen C. North},
   year = 2006,
   Journal = {IEEE Trans. Vis. Comput. Graph.},
   Volume = 12,
   Number = 5,
   Pages = {749-756}
}