@article { KJG+12a, title = {Evaluating the Role of Time in Investigative Analysis of Document Collections}, journal = {IEEE Transactions on Visualization and Computer Graphics}, month = {Nov}, number = {11}, pages = {1992--2004}, doi = {10.1109/TVCG.2012.89}, year = {2012}, author = {Kwon, Bum Chul and Javed, Waqas and Ghani, Sohaib and Elmqvist, Niklas and Yi, Ji Soo and Ebert, David} }