The error estimates for the infinite element method for eigenvalue problems Houde Han — 1982 ESAIM: Mathematical Modelling and Numerical Analysis - Modélisation Mathématique et Analyse Numérique
A boundary element method for Signorini problems in three dimensions. Houde Han Numerische Mathematik
A Finite Element Method for a Boundary Value Problem of Mixed Type. A.K. Aziz; M. Schneider; Houde Han — 1984 Numerische Mathematik