@inproceedings{ijcai1983p128,
  title     = {"Logal": Algorithmic Control Structures for Prolog},
  author    = {Dodson, D. C. and Rector, Alan L.},
  booktitle = {Proceedings of the Eighth International Joint Conference on
               Artificial Intelligence, {IJCAI-83}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  editor    = {Alan Bundy},
  pages     = {536--537},
  year      = {1983},
  note      = {Logic Programming},
  url       = {https://ijcai.org/proceedings/1983/128},
}