@inproceedings{ijcai1985p183,
  title     = {SIGMA: A Framework for Image Understanding - Integration of Bottom-Up and Top-Down Analysis},
  author    = {Matsuyama, Takashi and Hwang, Vincent Shang-Shouq},
  booktitle = {Proceedings of the Ninth International Joint Conference on
               Artificial Intelligence, {IJCAI-85}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  editor    = {Aravind Joshi},
  pages     = {908--914},
  year      = {1985},
  note      = {Perception},
  url       = {https://ijcai.org/proceedings/1985/183},
}