@inproceedings{ijcai1973p31,
  title     = {A Universal Modular ACTOR Formalism for Artificial Intelligence},
  author    = {Hewitt, Carl and Bishop, Peter Boehler and Steiger, Richard},
  booktitle = {Proceedings of the Third International Joint Conference on
               Artificial Intelligence, {IJCAI-73}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  editor    = {Nils J. Nilsson},
  pages     = {235--244},
  year      = {1973},
  month     = {8},
  note      = {Formalisms for A.I.},
  url       = {https://ijcai.org/proceedings/1973/31},
}