Implicit Runge- Kutta Methods for Second Kind Volterra Integral Equations. R. Weiss; F. de Hoog Numerische Mathematik
On pointwise stability of cubic smoothing splines with nonuniform sampling points R. S. Anderssen; F. R. de Hoog; L. B. Wahlbin — 1991 ESAIM: Mathematical Modelling and Numerical Analysis - Modélisation Mathématique et Analyse Numérique
QR Factorization of Toeplitz Matrices. A.W. Bojanczyk; R.P., de Hoog, F. de Brent — 1986 Numerische Mathematik