@inproceedings{ijcai1985p212,
  title     = {SPAN: Integrating Problem-Solving Tactics},
  author    = {Berlin, Daniel L. S.},
  booktitle = {Proceedings of the Ninth International Joint Conference on
               Artificial Intelligence, {IJCAI-85}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  editor    = {Aravind Joshi},
  pages     = {1047--1050},
  year      = {1985},
  note      = {Planning and Search},
  url       = {https://ijcai.org/proceedings/1985/212},
}