Yannis Theodoridis, Dimitris Papadias, Emmanuel Stefanakis, Timos K. Sellis. Direction Relations and Two-Dimensional Range Queries: Optimisation Techniques. Data \& Knowledge Engineering, 27(3):313-336, 1998. [doi]
@article{TheodoridisPSS98,
title = {Direction Relations and Two-Dimensional Range Queries: Optimisation Techniques},
author = {Yannis Theodoridis and Dimitris Papadias and Emmanuel Stefanakis and Timos K. Sellis},
year = {1998},
doi = {10.1016/S0169-023X(97)00060-8},
url = {http://dx.doi.org/10.1016/S0169-023X(97)00060-8},
researchr = {https://researchr.org/publication/TheodoridisPSS98},
cites = {0},
citedby = {0},
journal = {Data \& Knowledge Engineering},
volume = {27},
number = {3},
pages = {313-336},
}