@article{Schaback-89-Quadratic,
  volume = {6},
  number = {3},
  mrnumber = {MR1019424 (90j:65020)},
  issn = {0167-8396},
  author = {Schaback, Robert},
  mrclass = {65D05 (41A05)},
  fjournal = {Computer Aided Geometric Design},
  coden = {CAGDEX},
  title = {Interpolation with piecewise quadratic visually {$C^2$} {B}\'ezier
           polynomials},
  pages = {219--233},
  journal = {Comput. Aided Geom. Design},
  year = {1989},
}