BibTeX record journals/ai/LiuL11

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@article{DBLP:journals/ai/LiuL11,
  author       = {Weiming Liu and
                  Sanjiang Li},
  title        = {Reasoning about cardinal directions between extended objects: The
                  NP-hardness result},
  journal      = {Artif. Intell.},
  volume       = {175},
  number       = {18},
  pages        = {2155--2169},
  year         = {2011},
  url          = {https://doi.org/10.1016/j.artint.2011.07.005},
  doi          = {10.1016/J.ARTINT.2011.07.005},
  timestamp    = {Tue, 06 Oct 2020 18:27:08 +0200},
  biburl       = {https://dblp.org/rec/journals/ai/LiuL11.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}

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