@article{DBLP:journals/cad/BeatyFH94,
  author    = {Paula L. Beaty and
               Patrick A. Fitzhorn and
               Gary J. Herron},
  title     = {Extensions in variational geometry that generate and modify
               object edges composed of rational B{\'e}zier curves},
  journal   = {Computer-Aided Design},
  volume    = {26},
  number    = {2},
  year      = {1994},
  pages     = {98-108},
  ee        = {http://dx.doi.org/10.1016/0010-4485(94)90030-2},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}