1. and , Finite Element Programming of the Navier-Stokes Equation, Pineridge Press, Swansea, 1980.
2. also available as NASA CR-179135, 1987.
3. and , ‘Mixed and irreducible formulations in finite element analysis’, in et al. (eds), Hybrid and Mixed Finite Element Methods, Wiley, New York, 1983.
4. Consistent vs. reduced integration penalty methods for incompressible media using several old and new elements