Christian S. Jensen Markus Schneider 0001 Bernhard Seeger Vassilis J. Tsotras Advances in Spatial and Temporal Databases, 7th International Symposium, SSTD 2001, Redondo Beach, CA, USA, July 12-15, 2001, Proceedings SSTD Lecture Notes in Computer Science 2121 Springer 2001 3-540-42301-X db/conf/ssd/sstd2001.html