Farin93'

@article{DBLP:journals/cagd/Farin93,
  author    = {Gerald E. Farin},
  title     = {Tighter convex hulls for rational B{\'e}zier curves},
  journal   = {Computer Aided Geometric Design},
  volume    = {10},
  number    = {2},
  year      = {1993},
  pages     = {123-125},
  ee        = {http://dx.doi.org/10.1016/0167-8396(93)90015-U},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}