Article

Hueck, U. ; Schreyer, ; Wriggers, P. (1995):
On the incompressibility constraint of the four-node quadrilateral element.
In: International journal for numerical methods in engineering. 38 (1995), S. 3039-3053, [Article]

Hueck, U. ; Wriggers, P. (1995):
A formulation for the four-node quadrilateral element. Pt. 1: Plane element.
In: International journal for numerical methods in engineering. 38 (1995), S. 3007-3037, [Article]