@article{Nguyen2012A,

  title={A Nonsymmetric Mixture Model for Unsupervised Image Segmentation},

  author={Nguyen, T. M. and Wu, Q. M.},

  journal={IEEE Transactions on Systems Man & Cybernetics Part B Cybernetics A Publication of the IEEE Systems Man & Cybernetics Society},

  volume={43},

  number={2},

  pages={751-765},

  year={2012},

}