PODS - Spatial and Constraint Databases
Reachability and Connectivity Queries in Constraint Databases
Michael Benedikt
Martin Grohe
Leonid Libkin
Luc Segoufin
Fixed-Point Query Languages for Linear Constraint Databases
Stephan Kreutzer
Linear Approximation of Planar Spatial Databases Using Transitive-Closure Logic
Floris Geerts
Bart Kuijpers
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