@Article{jue:06c,
  author = 	 {C. Pechstein and B. J\"uttler},
  title = 	 {Monotonicity--preserving interproximation of {$B-H$} curves},
  journal = 	 {J. Comp. Appl. Math.},
  year = 	 {2006},
  volume =       {196},
  pages =        {45--57}
}