Christos H. Papadimitriou, Dan Suciu, Victor Vianu. Topological Queries in Spatial Databases. In Proceedings of the Fifteenth ACM SIGACT-SIGMOD-SIGART Symposium on Principles of Database Systems, June 3-5, 1996, Montreal, Canada. pages 81-92, ACM Press, 1996. [doi]
Abstract is missing.