Náprstek, J., Fischer, C. Auto-Parametric Stability And Post-Critical Behavior of a Non-Linear Continuous System Under Random Seismic Excitation. In: OLIVEIRA, C.S., ed. Proc. 15th World conference of Earth Engineering. Lisabon: Portuguese Society for Earthquake Engineering, 2012, s. 1-10. ISBN 978-989-20-3182-8.