@article{fang2013towards,
  title={Towards robust deconvolution of low-dose perfusion CT: Sparse perfusion deconvolution using online dictionary learning},
  author={Fang, Ruogu and Chen, Tsuhan and Sanelli, Pina C},
  journal={Medical image analysis},
  volume={17},
  number={4},
  pages={417--428},
  year={2013},
  publisher={Elsevier}
}