1. Arnold D.N., Brezzi F. and Douglas J., PEERS : A new mixed finite element method for plane elasticity.Japan J. Appl. Math.1(1984) 347–367.
2. I. Babuška and A.K. Aziz, Survey lectures on the mathematical foundations of the finite element method. inThe Mathematical Foundations of the Finite Element Method with Applications to Partial Differential Equations, edited by A.K. Aziz. Academic Press, New York (1972).
3. S.C. Brenner and L.R. Scott,The Mathematical Theory of Finite Element Methods. Springer-Verlag New York, Inc. (1994).
4. F. Brezzi and M. Fortin,Mixed and Hybrid Finite Element Methods. Springer Verlag (1991).
5. Bielak J. and MacCamy R.C., Symmetric finite element and boundary integral coupling methods for fluid-solid interaction.Quarterly Appl. Math.49(1991) 107–119.