On Conforming Finite Element Methods for the Inhomogeneous Stationary Navier-Stokes Equations. M.D. Gunzburger; J.S. Peterson — 1983 Numerische Mathematik
On Mixed Finite Element Methods for First Order Elliptic Systems. R.A. Nicolaides; G.J. Fix; M.D. Gunzburger — 1981 Numerische Mathematik