- Computational Techniques for Structural Damage and Failure,
W.B. Krätzig, Y. Petryna and F. Chen
Paper 3.1 from CCP: 69, ISBN 0-948749-71-7 (2000)
- Structural Damage: Simulation and Assessment,
Y.S. Petryna, W.B. Krätzig and F. Stangenberg
Chapter 14 from CSETS: 7, ISBN 1-874672-16-4 (2002)