1. Selectivity estimation in spatial databases;Acharya,1999
2. A cost model for estimating the performance of spatial joins using R-trees;Huang,1997
3. On packing R-tree;Kamel,1993
4. Towards an analysis of range query performance in spatial data structures;Pagel,1993
5. Processing and optimization of multi-way spatial joins using R-trees;Papadias,1999