@article{Prautzsch:1989:ART,
  author = {Hartmut Prautzsch},
  title = {A Round Trip to B-Splines Via de Casteljau},
  journal = {ACM Transactions on Graphics},
  volume = {8},
  number = {3},
  pages = {243--254},
  month = jul,
  year = {1989},
}