@conference {ClusterVAST, title = {Visual Cluster Analysis of Large Collections of Trajectories}, booktitle = {IEEE Visual Analytics Science and Tecnology (VAST 2009)}, year = {2009}, publisher = {IEEE Computer Society Press}, organization = {IEEE Computer Society Press}, author = {Gennady Andrienko and Natalia Andrienko and S Rinzivillo and Mirco Nanni and Dino Pedreschi and Fosca Giannotti} }