- Uncertainty and Robustness in Structural Design,
M. Beer and M. Liebscher
Paper 57 from CCP: 91, ISBN 978-1-905088-32-4 (2009)
- Fuzzy Cluster Design: A New Way for Structural Design,
B. Möller, M. Beer and M. Liebscher
Paper 119 from CCP: 77, ISBN 0-948749-89-X (2003)