@inproceedings{torralba-et-al_ijcai2013,
  author       = {Torralba, Álvaro and Linares López, Carlos and Borrajo, Daniel},
  pages        = {2394 -- 2400},
  title        = {Symbolic merge-and-shrink for cost-optimal planning},
  year         = 2013,
  editor       = {Francesca Rossi},
  booktitle    = {Proceedings of the 23rd International Joint Conference on Artificial
    Intelligence (IJCAI 2013)},
  publisher    = {AAAI Press},
}