@article{wong2014computation,
  title={Computation of Quasi-Conformal Surface Maps Using Discrete Beltrami Flow},
  author={Wong, Tsz Wai and Zhao, Hong-kai},
  journal={SIAM Journal on Imaging Sciences},
  volume={7},
  number={4},
  pages={2675--2699},
  year={2014},
  publisher={SIAM}
}