Hongwei Lin. On the derivative formula of a rational Bézier curve at a corner. Applied Mathematics and Computation, 210(1):197-201, 2009. [doi]
@article{Lin09a-1,
title = {On the derivative formula of a rational Bézier curve at a corner},
author = {Hongwei Lin},
year = {2009},
doi = {10.1016/j.amc.2008.12.078},
url = {http://dx.doi.org/10.1016/j.amc.2008.12.078},
researchr = {https://researchr.org/publication/Lin09a-1},
cites = {0},
citedby = {0},
journal = {Applied Mathematics and Computation},
volume = {210},
number = {1},
pages = {197-201},
}