@inproceedings{ijcai1977p160,
  title     = {A Computer System for Visual Recognition Using Active Knowledge},
  author    = {Freuder, Eugene C.},
  booktitle = {Proceedings of the Fifth International Joint Conference on
               Artificial Intelligence, {IJCAI-77}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  editor    = {Raj Reddy},
  pages     = {671--676},
  year      = {1977},
  note      = {Vision},
  url       = {https://ijcai.org/proceedings/1977/160},
}