@inproceedings{erfani2010modified,
  title={A Modified PSO Method Enhanced with Fuzzy Inference System for Solving the Planar Graph Coloring Problem},
  author={Erfani, Mostafa and Ghanizadeh, Afshin and Atapour-Abarghouei, Amir and Sinaie, Saman and Shamsuddin, S.M.},
  booktitle={Int. Conf. Artificial Intelligence},
  pages={160--165},
  year={2010}
}