On the Finite Element Method.
A Finite Element Procedure of the Second Order of Accuracy.
On Some Finite Element Procedures for Solving Second Order Boundary Value Problems.
Convergence of the Nonconforming Wilson Element for Arbitrary Quadrilateral Meshes.
Discretisation and error estimates for elliptic boundary value problems of the fourth order
The parabolic equations as a limiting case of hyperbolic and elliptic equations
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