@inproceedings{ijcai2013p171,
  title     = {A Classification of First-Order Progressable Action Theories in Situation Calculus},
  author    = {Vassos, Stavros and Patrizi, Fabio},
  booktitle = {Proceedings of the Twenty-Third International Joint Conference on
               Artificial Intelligence, {IJCAI-13}},
  publisher = {AAAI Press / International Joint Conferences on Artificial Intelligence},
  editor    = {Francesca Rossi},
  pages     = {1132--1137},
  year      = {2013},
  month     = {8},
  url       = {https://ijcai.org/proceedings/2013/171},
}