@inproceedings{shi-min2001conversion,
title={Conversion between triangular and rectangular Bezier patches},
author={Shi-Min Hu},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20160826223151754265462},
booktitle={Computer Aided Geometric Design},
volume={18},
number={7},
pages={667-671},
year={2001},
}

Shi-Min Hu. Conversion between triangular and rectangular Bezier patches. 2001. Vol. 18. In Computer Aided Geometric Design. pp.667-671. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20160826223151754265462.