@inproceedings{OGK12a,
 author = {Oelke, Daniela and Geißelmann, Benno and Keim, Daniel A.},
 booktitle = {Proceedings of the International Workshop on Visual Analytics (EuroVA 2012)},
 title = {Visual Analysis of Explicit Opinion and News Bias in German Soccer Articles},
 year = {2012}
}