@inproceedings{ijcai2001p34,
  title     = {Heuristic Search in Infinite State Spaces Guided by Lyapunov Analysis},
  author    = {Perkins, Theodore J. and Barto, Andrew G.},
  booktitle = {Proceedings of the Seventeenth International Joint Conference on
               Artificial Intelligence, {IJCAI-01}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  pages     = {242--246},
  year      = {2001},
  url       = {https://ijcai.org/proceedings/2001/34},
}