- A Continuum based 3D-Shell Element for Computation of Laminated Structures and Finite Strain Plasticity Problems,
S. Klinkel, W. Wagner and F. Gruttmann
Paper 7.4 from CCP: 67, ISBN 0-948749-69-5 (2000)
- Delamination Analysis of Thin Composite Structures using a Multi-Director Formulation,
F. Gruttmann and W. Wagner
Paper 3.1 from CCP: 41, ISBN 0-948749-43-1 (1996)