Thanasis Hadzilacos Yannis Manolopoulos John F. Roddick Yannis Theodoridis Advances in Spatial and Temporal Databases, 8th International Symposium, SSTD 2003, Santorini Island, Greece, July 24-27, 2003, Proceedings SSTD Lecture Notes in Computer Science 2750 Springer 2003 3-540-40535-6 db/conf/ssd/sstd2003.html