@inproceedings{KZ11a,
 author = {Keim, Daniel A. and Zhang, Leishi},
 booktitle = {Proceedings of I-KNOW 2011, 11th International Conference on Knowledge Management and Knowledge Technologies},
 doi = {acm.org/10.1145/2024288.2024290},
 editor = {ACM},
 month = {sep},
 organization = {I-KNOW 2011},
 publisher = {ACM},
 title = {Solving problems with visual analytics: challenges and applications},
 year = {2011}
}