@InProceedings{DBLP:conf/uidis/KeimKN99,
   title = {Visual Exploration of Large Telecommunication Data Sets},
   author = {Daniel A. Keim and Eleftherios Koutsofios and Stephen C. North},
   year = 1999,
   BookTitle = {UIDIS},
   att_url = {http://www2.research.att.com/areas/visualization/papers_videos/pdf/DBLP-conf-uidis-KeimKN99.pdf}
}