@inproceedings{ijcai1987p156,
  title     = {A Shape Representation Based on Geometric Topology: Bumps, Gaussian Curvature, and the Topological Zodiac},
  author    = {Blicher, A. Peter},
  booktitle = {Proceedings of the Tenth International Joint Conference on
               Artificial Intelligence, {IJCAI-87}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  editor    = {John McDermott},
  pages     = {767--769},
  year      = {1987},
  note      = {Perception},
  url       = {https://ijcai.org/proceedings/1987/156},
}