1. Computer Simulation of Liquids;Allen,1987
2. The priority R-tree: a practically efficient and worst-case optimal R-tree;Arge,2004
3. Toward an object-oriented core of the PPM library;Awile,2010
4. S. Balay, J. Brown, K. Buschelman, V. Eijkhout, W.D. Gropp, D. Kaushik, M.G. Knepley, L.C. McInnes, B.F. Smith, H. Zhang, PETSc users manual, Technical report ANL-95/11, Revision 3.1, Argonne National Laboratory, 2010.
5. Multidimensional binary search trees used for associative searching;Bentley;Commun. ACM,1975