Roussopoulos, N.; Kelley, S.; Vincent, F. D. R. (1995). Nearest neighbor queries. Proceedings of the 1995 ACM SIGMOD international conference on Management of data – SIGMOD '95. с. 71. doi:10.1145/223784.223794. ISBN0897917316.
Schubert, E.; Zimek, A.; Kriegel, H. P. (2013). Geodetic Distance Queries on R-Trees for Indexing Geographic Data. Advances in Spatial and Temporal Databases. Lecture Notes in Computer Science. Т. 8098. с. 146. doi:10.1007/978-3-642-40235-7_9. ISBN978-3-642-40234-0.
Brinkhoff, T.; Kriegel, H. P.; Seeger, B. (1993). Efficient processing of spatial joins using R-trees. ACM SIGMOD Record. 22 (2): 237. doi:10.1145/170036.170075.
Achtert, E.; Böhm, C.; Kröger, P. (2006). DeLi-Clu: Boosting Robustness, Completeness, Usability, and Efficiency of Hierarchical Clustering by a Closest Pair Ranking. LNCS: Advances in Knowledge Discovery and Data Mining. Lecture Notes in Computer Science. 3918: 119—128. doi:10.1007/11731139_16. ISBN978-3-540-33206-0.
Ang, C. H.; Tan, T. C. (1997). New linear node splitting algorithm for R-trees. У Scholl, Michel; Voisard, Agnès (ред.). Proceedings of the 5th International Symposium on Advances in Spatial Databases (SSD '97), Berlin, Germany, July 15–18, 1997. Lecture Notes in Computer Science. Т. 1262. Springer. с. 337—349. doi:10.1007/3-540-63238-7_38.