@article{110056,
  author = {David Gilsinn and J Lavery},
  title = {Shape-Preserving, Multi-Scale Fitting of Bivariate Data by Cubic L<sub>1</sub> Smoothing Splines},
  year = {2002},
  month = {2002-05-10},
  publisher = {Journal of Approximation Theory},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=150830},
  language = {en},
}