@article{HKD+08,
 author = {Hao, Ming C. and Keim, Daniel A. and Dayal, Umeshwar and Oelke, Daniela and Tremblay, Chantal},
 doi = {10.1111/j.1467-8659.2008.01222.x},
 journal = {Computer Graphics Forum},
 number = {3},
 pages = {895--902},
 title = {Density Displays for Data Stream Monitoring},
 volume = {27},
 year = {2008}
}