@article{li2014hugo,
  title={HUGO: Hierarchical mUlti-reference Genome cOmpression for aligned reads},
  author={Li, Pinghao and Jiang, Xiaoqian and Wang, Shuang and Kim, Jihoon and Xiong, Hongkai and Ohno-Machado, Lucila},
  journal={Journal of the American Medical Informatics Association},
  volume={21},
  number={2},
  pages={363--373},
  year={2014},
  publisher={The Oxford University Press}
}
http://jamia.oxfordjournals.org/content/21/2/363.short