@inproceedings{AAB+09a, author = {Andrienko, Gennady and Andrienko, Natalia and Bak, Peter and Kisilevich, Slava and Keim, Daniel A.}, booktitle = {Proceedings of the IEEE Symposium on Visual Analytics Science and Technology (VAST 2009), Poster Paper}, title = {Analysis of community-contributed space- and time-referenced data (example of flickr photos)}, year = {2009} }