1. Charikar, M., Guha, S., 1999. Improved combinatorial algorithms for the facility location and k-median problems. In: Proceedings of IEEE Symposium on Foundations of Computer Science, New York, NY, pp. 378–388.
2. Multi-resolution out-of-core modeling of terrain and teological data;Danovaro,2005
3. Computational Geometry: Algorithms and Applications;de Berg,1997
4. A pyramidal data structure for triangle-based surface description;De Floriani;IEEE Computer Graphics and Applications,1989
5. Hierarchical triangulation for multiresolution surface description;De Floriani;ACM Transactions on Graphics (TOG),1995