@incollection{Degen-approximation-95,
  mrnumber = {MR1356956 (96g:65019)},
  author = {Degen, W. L. F.},
  mrclass = {65D17},
  booktitle = {Mathematical methods for curves and surfaces ({U}lvik, 1994)},
  address = {Nashville, TN},
  title = {High accuracy approximation of parametric curves},
  publisher = {Vanderbilt Univ. Press},
  year = {1995},
  pages = {83--98},
}