@article{Koutsofios:1999:VBV,
	author={Eleftherios E. Koutsofios and Stephen C. North and Daniel A. Keim},
	journal=j-ieee-cga,
	month=may#{\slash }#jun,
	number=3,
	pages={16--19},
	title={Visualization Blackboard: Visualizing Large Telecommunication Data Sets},
	volume=19,
	year=1999,
}