Sungwook Moon Udayan Kumar Jeeyoung Kim Wei-jen Hsu Ahmed Helmy Visualization and Representation of Mobile Network Users. 588-590 2008 SECON http://dx.doi.org/10.1109/SAHCN.2008.79 conf/secon/2008 db/conf/secon/secon2008.html#MoonKKHH08