Preconditioning P1 nonconforming finite elements: condition numbers and singular value distributions. Sze-Ping Wong — 1993 Numerische Mathematik
Preconditioning conforming finite element methods for treating Dirichlet boundary conditions. II. Sze-Ping Wong — 1992 Numerische Mathematik
Preconditioning conforming finite element methods for treating Dirichlet boundary conditions. I. Sze-Ping Wong — 1992 Numerische Mathematik