Shape optimization in contact problems. Approximation and numerical realization J. Haslinger; P. Neittaanmäki — 1987 ESAIM: Mathematical Modelling and Numerical Analysis - Modélisation Mathématique et Analyse Numérique
On Finite Element Approximation of the Gradient for Solution of Poisson Equation. P. Neittaanmäki; J. Saranen — 1981 Numerische Mathematik
Regularization and finite element approximation of the wave equation with Dirichlet boundary data I. Lasiecka; J. Sokołowski; P. Neittaanmäki — 1990 Banach Center Publications
A parallel splitting-up method for partial differential equations and its applications to Navier-Stokes equations T. Lu; P. Neittaanmaki; X.-C. Tai — 1992 ESAIM: Mathematical Modelling and Numerical Analysis - Modélisation Mathématique et Analyse Numérique