@inproceedings{ijcai2001p97,
  title     = {An Improved Grid-Based Approximation Algorithm for POMDPs},
  author    = {Zhou, Rong and Hansen, Eric A.},
  booktitle = {Proceedings of the Seventeenth International Joint Conference on
               Artificial Intelligence, {IJCAI-01}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  pages     = {707--715},
  year      = {2001},
  url       = {https://ijcai.org/proceedings/2001/97},
}