@inproceedings{peebles1999multiple,
  title = "Multiple processes in graph-based reasoning",
  author = "Peebles, David and Cheng, Peter CH and Shadbolt, Nigel",
  year = "1999",
  booktitle = "Proceedings of the 21st Annual Conference of the Cognitive Science Society",
  organization = "Lawrence Erlbaum Hillsdale",
  pages = "531--536",
}