A note on the paper "Normal based subdivision scheme for curve design" by Xunnian Yang

@article{Liang2008ANO,
  title={A note on the paper "Normal based subdivision scheme for curve design" by Xunnian Yang},
  author={Luming Liang and Huanxi Zhao and Beiji Zou},
  journal={Computer Aided Geometric Design},
  year={2008},
  volume={25},
  pages={700-704}
}