- Seismic Control Devices for Machinery, Equipment and Buildings,
P. Nawrotzki
Paper 277 from CCP: 79, ISBN 0-948749-95-4 (2004)
- On Kinematic Instability Phenomena of Elasto-Plastic Shell Structures,
P. Nawrotzki, W.B. Krätzig and U. Montag
Paper 3.2 from CCP: 26, ISBN 0-948749-28-8 (1994)