Zhong, Ruicheng; Li, Guoliang; Tan, Kian-Lee; Zhou, Lizhu; Gong, Zhiguo (2015). G-Tree: An Efficient and Scalable Index for Spatial Search on Road Networks. IEEE Transactions on Knowledge and Data Engineering, 27(8), 2175–2189.
doi:10.1109/tkde.2015.2399306
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