@inproceedings{ijcai2001p36,
  title     = {Backbones in Optimization and Approximation},
  author    = {Slaney, John K. and Walsh, Toby},
  booktitle = {Proceedings of the Seventeenth International Joint Conference on
               Artificial Intelligence, {IJCAI-01}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  pages     = {254--258},
  year      = {2001},
  url       = {https://ijcai.org/proceedings/2001/36},
}