@inproceedings{ijcai1997p216,
  title     = {A General Expression of the Fundamental Matrix for Both Perspective and Affine Cameras},
  author    = {Zhang, Zhengyou and Xu, Gang},
  booktitle = {Proceedings of the Fifteenth International Joint Conference on
               Artificial Intelligence, {IJCAI-97}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  editor    = {Martha E. Pollack},
  pages     = {1502--1509},
  year      = {1997},
  note      = {Vision},
  url       = {https://ijcai.org/proceedings/1997/216},
}