@inproceedings{ijcai1985p193,
  title     = {Transformational Form Perception in 3D: Constraints, Algorithms, Implementation},
  author    = {Ballard, Dana H. and Tanaka, Hiromi},
  booktitle = {Proceedings of the Ninth International Joint Conference on
               Artificial Intelligence, {IJCAI-85}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  editor    = {Aravind Joshi},
  pages     = {964--967},
  year      = {1985},
  note      = {Perception},
  url       = {https://ijcai.org/proceedings/1985/193},
}