1. Smoothing noisy data with spline functions: estimating the correct degree of smoothing by the method of generalized cross validation;Craven;Numer. Math.,1979
2. A comparison of statistical regularization and Fourier extrapolation methods for numerical deconvolution;Davies,1983
3. Interpolation des fonctions de deux variables suivant le principe de la flexion des plaques minces;Duchon;RAIRO Analyse numerique,1976
4. Splines minimizing rotation-invariant semi-norms in Sobolev spaces;Duchon,1977