@inproceedings{ijcai1987p199,
  title     = {Formal Theories of Action (Preliminary Report)},
  author    = {Lifschitz, Vladimir},
  booktitle = {Proceedings of the Tenth International Joint Conference on
               Artificial Intelligence, {IJCAI-87}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  editor    = {John McDermott},
  pages     = {966--971},
  year      = {1987},
  note      = {Reasoning},
  url       = {https://ijcai.org/proceedings/1987/199},
}