Akrivi Vlachou Christos Doulkeridis Yannis Kotidis Angle-based space partitioning for efficient parallel skyline computation. 227-238 2008 SIGMOD Conference http://doi.acm.org/10.1145/1376616.1376642 conf/sigmod/2008 db/conf/sigmod/sigmod2008.html#VlachouDK08