@article{DBLP:journals/corr/abs-0906-5286,
	author={Emden R. Gansner, 
               Yifan Hu, 
               Stephen G. Kobourov, 
               Chris Volinsky},
	journal={CoRR},
	title={Putting Recommendations on the Map -- Visualizing Clusters and Relations},
	volume={abs/0906.5286},
	year=2009,
}