@inproceedings{ijcai2003p154,
  title     = {Describing Additive Fluents in Action Language C+},
  author    = {Lee, Joohyung and Lifschitz, Vladimir},
  booktitle = {Proceedings of the Eighteenth International Joint Conference on
               Artificial Intelligence, {IJCAI-03}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  editor    = {Georg Gottlob},
  pages     = {1079--1083},
  year      = {2003},
  url       = {https://ijcai.org/proceedings/2003/154},
}