@incollection{Goodman-shape-preserving-1997,
  mrnumber = {MR1659717 (99k:41026)},
  author = {Goodman, T. N. T. and Ong, B. H.},
  mrclass = {41A29 (65D17)},
  booktitle = {Curves and surfaces with applications in CAGD
               (Chamonix--Mont-Blanc, 1996)},
  address = {Nashville, TN},
  title = {Shape preserving interpolation by {$G^2$} curves in three
           dimensions},
  publisher = {Vanderbilt Univ. Press},
  year = {1997},
  pages = {151--158},
}