@inproceedings{BvA+11a,
 author = {Bremm, Sebastian and Von Landesberger, Tatiana and Andrienko, Gennady and Andrienko, Natalia and Schreck, Tobias},
 booktitle = {Proc. EuroVA International Workshop on Visual Analytics},
 note = {Peer-reviewed short paper},
 organization = {Eurographics},
 pages = {41 -- 44},
 title = {Interactive analysis of object group changes over time},
 year = {2011}
}