@article{KNPS04a, author = {Keim, Daniel A. and North, Stephen C. and Panse, Christian and Sips, Mike}, journal = {IEEE Computer Graphics and Applications (CG&A), Special Issue: Visual Analytics}, month = {Sep}, number = {5}, organization = {IEEE Computer Society}, pages = {36-44}, publisher = {IEEE Press}, title = {Visual Data Mining in Large Geo-Spatial Point Sets}, volume = {12}, year = {2004} }