Dimitris Papadias Donghui Zhang George Kollios Advances in Spatial and Temporal Databases, 10th International Symposium, SSTD 2007, Boston, MA, USA, July 16-18, 2007, Proceedings SSTD Lecture Notes in Computer Science 4605 Springer 2007 978-3-540-73539-7 db/conf/ssd/sstd2007.html