@inproceedings{ledezma-et-al_ictwai2001,
  author       = {Ledezma, Agapito and Aler, Ricardo and Borrajo, Daniel},
  pages        = {210 -- 217},
  title        = {Empirical study of a stacking state-space},
  year         = 2001,
  booktitle    = {Proceedings of the International Conference on Tools with Artificial
    Intelligence},
}