@article{simon04convex,
  author = {A. Simon and A. King},
  title = {Convex {H}ull of {P}lanar {H}-{P}olyhedra},
  journal = {International Journal of Computer Mathematics},
  month = {March},
  year = 2004,
  pages = {259--271},
  volume = {81},
  number = {4},
  publisher = {Taylor \& Francis},
}