@Article{jue:01a,
  author = 	 {B. J\"uttler},
  title = 	 {Hermite interpolation by {P}ythagorean hodograph curves of degree seven},
  journal = 	 {Math. Comp.},
  year = 	 {2001},
  volume = {70},
  pages =	 {1089--1111}
}