@inproceedings{ijcai1985p140,
  title     = {Retrospective Zooming: A Knowledge Based Tracking and Debugging Methodology for Logic Programming},
  author    = {Eisenstadt, Marc},
  booktitle = {Proceedings of the Ninth International Joint Conference on
               Artificial Intelligence, {IJCAI-85}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  editor    = {Aravind Joshi},
  pages     = {717--718},
  year      = {1985},
  note      = {Logic Programming},
  url       = {https://ijcai.org/proceedings/1985/140},
}