@ARTICLE{4469889,
  author={Duan, Zhiyao and Zhang, Yungang and Zhang, Changshui and Shi, Zhenwei},
  journal={IEEE Transactions on Audio, Speech, and Language Processing},
  title={Unsupervised Single-Channel Music Source Separation by Average Harmonic Structure Modeling},
  year={2008},
  volume={16},
  number={4},
  pages={766-778},
  doi={10.1109/TASL.2008.919073}}